diff --git a/locale/ja_JP.po b/locale/ja_JP.po
deleted file mode 100644
index 9ec760b89d..0000000000
--- a/locale/ja_JP.po
+++ /dev/null
@@ -1,620 +0,0 @@
-#
-msgid ""
-msgstr "Content-Type: text/plain; charset=utf-8\n"
-
-msgctxt "error:account.move.line.pay:"
-msgid "The Line \"%(line)s\" is blocked."
-msgstr ""
-
-msgctxt "error:account.payment.process:"
-msgid "The Payment \"%(payment)s\" overpays the Line \"%(line)s\"."
-msgstr ""
-
-msgctxt "error:account.payment:"
-msgid "Payment \"%s\" must be in draft before deletion."
-msgstr ""
-
-msgctxt "error:party.erase:"
-msgid ""
-"The party \"%(party)s\" can not be erased because he has pending payments "
-"for the company \"%(company)s\"."
-msgstr ""
-
-msgctxt "field:account.configuration,payment_group_sequence:"
-msgid "Payment Group Sequence"
-msgstr ""
-
-msgctxt "field:account.configuration.payment_group_sequence,company:"
-msgid "Company"
-msgstr ""
-
-msgctxt "field:account.configuration.payment_group_sequence,create_date:"
-msgid "Create Date"
-msgstr ""
-
-msgctxt "field:account.configuration.payment_group_sequence,create_uid:"
-msgid "Create User"
-msgstr ""
-
-msgctxt "field:account.configuration.payment_group_sequence,id:"
-msgid "ID"
-msgstr ""
-
-msgctxt ""
-"field:account.configuration.payment_group_sequence,payment_group_sequence:"
-msgid "Payment Group Sequence"
-msgstr ""
-
-msgctxt "field:account.configuration.payment_group_sequence,rec_name:"
-msgid "Record Name"
-msgstr ""
-
-msgctxt "field:account.configuration.payment_group_sequence,write_date:"
-msgid "Write Date"
-msgstr ""
-
-msgctxt "field:account.configuration.payment_group_sequence,write_uid:"
-msgid "Write User"
-msgstr ""
-
-msgctxt "field:account.invoice,payment_direct_debit:"
-msgid "Direct Debit"
-msgstr ""
-
-msgctxt "field:account.move.line,payment_amount:"
-msgid "Payment Amount"
-msgstr ""
-
-msgctxt "field:account.move.line,payment_blocked:"
-msgid "Blocked"
-msgstr ""
-
-msgctxt "field:account.move.line,payment_direct_debit:"
-msgid "Direct Debit"
-msgstr ""
-
-msgctxt "field:account.move.line,payment_kind:"
-msgid "Payment Kind"
-msgstr ""
-
-#, fuzzy
-msgctxt "field:account.move.line,payments:"
-msgid "Payments"
-msgstr "Payments"
-
-msgctxt "field:account.move.line.pay.ask_journal,company:"
-msgid "Company"
-msgstr ""
-
-msgctxt "field:account.move.line.pay.ask_journal,currency:"
-msgid "Currency"
-msgstr ""
-
-msgctxt "field:account.move.line.pay.ask_journal,id:"
-msgid "ID"
-msgstr ""
-
-msgctxt "field:account.move.line.pay.ask_journal,journal:"
-msgid "Journal"
-msgstr ""
-
-msgctxt "field:account.move.line.pay.ask_journal,journals:"
-msgid "Journals"
-msgstr ""
-
-msgctxt "field:account.payment,amount:"
-msgid "Amount"
-msgstr ""
-
-msgctxt "field:account.payment,company:"
-msgid "Company"
-msgstr ""
-
-msgctxt "field:account.payment,create_date:"
-msgid "Create Date"
-msgstr ""
-
-msgctxt "field:account.payment,create_uid:"
-msgid "Create User"
-msgstr ""
-
-msgctxt "field:account.payment,currency:"
-msgid "Currency"
-msgstr ""
-
-msgctxt "field:account.payment,currency_digits:"
-msgid "Currency Digits"
-msgstr ""
-
-msgctxt "field:account.payment,date:"
-msgid "Date"
-msgstr ""
-
-msgctxt "field:account.payment,description:"
-msgid "Description"
-msgstr ""
-
-msgctxt "field:account.payment,group:"
-msgid "Group"
-msgstr ""
-
-msgctxt "field:account.payment,id:"
-msgid "ID"
-msgstr ""
-
-msgctxt "field:account.payment,journal:"
-msgid "Journal"
-msgstr ""
-
-msgctxt "field:account.payment,kind:"
-msgid "Kind"
-msgstr ""
-
-msgctxt "field:account.payment,line:"
-msgid "Line"
-msgstr ""
-
-msgctxt "field:account.payment,origin:"
-msgid "Origin"
-msgstr ""
-
-msgctxt "field:account.payment,party:"
-msgid "Party"
-msgstr ""
-
-msgctxt "field:account.payment,rec_name:"
-msgid "Record Name"
-msgstr ""
-
-msgctxt "field:account.payment,state:"
-msgid "State"
-msgstr ""
-
-msgctxt "field:account.payment,write_date:"
-msgid "Write Date"
-msgstr ""
-
-msgctxt "field:account.payment,write_uid:"
-msgid "Write User"
-msgstr ""
-
-msgctxt "field:account.payment.group,company:"
-msgid "Company"
-msgstr ""
-
-msgctxt "field:account.payment.group,create_date:"
-msgid "Create Date"
-msgstr ""
-
-msgctxt "field:account.payment.group,create_uid:"
-msgid "Create User"
-msgstr ""
-
-msgctxt "field:account.payment.group,id:"
-msgid "ID"
-msgstr ""
-
-msgctxt "field:account.payment.group,journal:"
-msgid "Journal"
-msgstr ""
-
-msgctxt "field:account.payment.group,kind:"
-msgid "Kind"
-msgstr ""
-
-msgctxt "field:account.payment.group,number:"
-msgid "Number"
-msgstr ""
-
-#, fuzzy
-msgctxt "field:account.payment.group,payments:"
-msgid "Payments"
-msgstr "Payments"
-
-msgctxt "field:account.payment.group,rec_name:"
-msgid "Record Name"
-msgstr ""
-
-msgctxt "field:account.payment.group,write_date:"
-msgid "Write Date"
-msgstr ""
-
-msgctxt "field:account.payment.group,write_uid:"
-msgid "Write User"
-msgstr ""
-
-msgctxt "field:account.payment.journal,company:"
-msgid "Company"
-msgstr ""
-
-msgctxt "field:account.payment.journal,create_date:"
-msgid "Create Date"
-msgstr ""
-
-msgctxt "field:account.payment.journal,create_uid:"
-msgid "Create User"
-msgstr ""
-
-msgctxt "field:account.payment.journal,currency:"
-msgid "Currency"
-msgstr ""
-
-msgctxt "field:account.payment.journal,id:"
-msgid "ID"
-msgstr ""
-
-msgctxt "field:account.payment.journal,name:"
-msgid "Name"
-msgstr ""
-
-msgctxt "field:account.payment.journal,process_method:"
-msgid "Process Method"
-msgstr ""
-
-msgctxt "field:account.payment.journal,rec_name:"
-msgid "Record Name"
-msgstr ""
-
-msgctxt "field:account.payment.journal,write_date:"
-msgid "Write Date"
-msgstr ""
-
-msgctxt "field:account.payment.journal,write_uid:"
-msgid "Write User"
-msgstr ""
-
-msgctxt "field:account.payment.process.start,id:"
-msgid "ID"
-msgstr ""
-
-msgctxt "field:party.party,payment_direct_debit:"
-msgid "Direct Debit"
-msgstr ""
-
-msgctxt "field:party.party,payment_direct_debits:"
-msgid "Direct Debits"
-msgstr ""
-
-msgctxt "field:party.party.payment_direct_debit,company:"
-msgid "Company"
-msgstr ""
-
-msgctxt "field:party.party.payment_direct_debit,create_date:"
-msgid "Create Date"
-msgstr ""
-
-msgctxt "field:party.party.payment_direct_debit,create_uid:"
-msgid "Create User"
-msgstr ""
-
-msgctxt "field:party.party.payment_direct_debit,id:"
-msgid "ID"
-msgstr ""
-
-msgctxt "field:party.party.payment_direct_debit,party:"
-msgid "Party"
-msgstr ""
-
-msgctxt "field:party.party.payment_direct_debit,payment_direct_debit:"
-msgid "Direct Debit"
-msgstr ""
-
-msgctxt "field:party.party.payment_direct_debit,rec_name:"
-msgid "Record Name"
-msgstr ""
-
-msgctxt "field:party.party.payment_direct_debit,write_date:"
-msgid "Write Date"
-msgstr ""
-
-msgctxt "field:party.party.payment_direct_debit,write_uid:"
-msgid "Write User"
-msgstr ""
-
-msgctxt "help:account.invoice,payment_direct_debit:"
-msgid "Check if the invoice is paid by direct debit."
-msgstr ""
-
-msgctxt "help:account.move.line,payment_direct_debit:"
-msgid "Check if the line will be paid by direct debit."
-msgstr ""
-
-msgctxt "help:party.party,payment_direct_debit:"
-msgid "Check if supplier does direct debit."
-msgstr ""
-
-msgctxt "help:party.party.payment_direct_debit,payment_direct_debit:"
-msgid "Check if supplier does direct debit."
-msgstr ""
-
-msgctxt "model:account.configuration.payment_group_sequence,name:"
-msgid "Account Configuration Payment Group Sequence"
-msgstr ""
-
-#, fuzzy
-msgctxt "model:account.move.line.pay.ask_journal,name:"
-msgid "Pay Line"
-msgstr "Pay Lines"
-
-#, fuzzy
-msgctxt "model:account.payment,name:"
-msgid "Payment"
-msgstr "Payment"
-
-#, fuzzy
-msgctxt "model:account.payment.group,name:"
-msgid "Payment Group"
-msgstr "Payment Groups"
-
-#, fuzzy
-msgctxt "model:account.payment.journal,name:"
-msgid "Payment Journal"
-msgstr "Payment Journals"
-
-#, fuzzy
-msgctxt "model:account.payment.process.start,name:"
-msgid "Process Payment"
-msgstr "Process Payments"
-
-msgctxt "model:ir.action,name:act_move_line_form"
-msgid "Lines to Pay"
-msgstr "Lines to Pay"
-
-msgctxt "model:ir.action,name:act_pay_line"
-msgid "Pay Lines"
-msgstr "Pay Lines"
-
-msgctxt "model:ir.action,name:act_payment_form"
-msgid "Payments"
-msgstr "Payments"
-
-msgctxt "model:ir.action,name:act_payment_form_group_open"
-msgid "Payments"
-msgstr "Payments"
-
-msgctxt "model:ir.action,name:act_payment_form_line_relate"
-msgid "Payments"
-msgstr "Payments"
-
-msgctxt "model:ir.action,name:act_payment_group_form"
-msgid "Payment Groups"
-msgstr "Payment Groups"
-
-msgctxt "model:ir.action,name:act_payment_journal_form"
-msgid "Payment Journals"
-msgstr "Payment Journals"
-
-msgctxt "model:ir.action,name:act_process_payments"
-msgid "Process Payments"
-msgstr "Process Payments"
-
-msgctxt ""
-"model:ir.action.act_window.domain,name:act_move_line_form_domain_payable"
-msgid "Payable"
-msgstr "Payable"
-
-msgctxt ""
-"model:ir.action.act_window.domain,name:act_move_line_form_domain_receivable"
-msgid "Receivable"
-msgstr "Receivable"
-
-msgctxt "model:ir.action.act_window.domain,name:act_payment_form_domain_all"
-msgid "All"
-msgstr "All"
-
-msgctxt ""
-"model:ir.action.act_window.domain,name:act_payment_form_domain_approved"
-msgid "Approved"
-msgstr "Approved"
-
-msgctxt "model:ir.action.act_window.domain,name:act_payment_form_domain_draft"
-msgid "Draft"
-msgstr "Draft"
-
-msgctxt ""
-"model:ir.action.act_window.domain,name:act_payment_form_domain_failed"
-msgid "Failed"
-msgstr "Failed"
-
-msgctxt ""
-"model:ir.action.act_window.domain,name:act_payment_form_domain_processing"
-msgid "Processing"
-msgstr "Processing"
-
-msgctxt ""
-"model:ir.action.act_window.domain,name:act_payment_form_domain_suceeded"
-msgid "Succeeded"
-msgstr "Succeeded"
-
-msgctxt "model:ir.model.button,string:move_line_pay_button"
-msgid "Pay Lines"
-msgstr "Pay Lines"
-
-msgctxt "model:ir.model.button,string:move_line_payment_block_button"
-msgid "Block"
-msgstr "Block"
-
-msgctxt "model:ir.model.button,string:move_line_payment_unblock_button"
-msgid "Unblock"
-msgstr "Unblock"
-
-msgctxt "model:ir.model.button,string:payment_approve_button"
-msgid "Approve"
-msgstr "Approve"
-
-msgctxt "model:ir.model.button,string:payment_draft_button"
-msgid "Draft"
-msgstr "Draft"
-
-msgctxt "model:ir.model.button,string:payment_fail_button"
-msgid "Fail"
-msgstr "Fail"
-
-msgctxt "model:ir.model.button,string:payment_succeed_button"
-msgid "Succeed"
-msgstr "Succeed"
-
-msgctxt "model:ir.sequence,name:sequence_account_payment_group"
-msgid "Default Account Payment Group"
-msgstr "Default Account Payment Group"
-
-msgctxt "model:ir.sequence.type,name:sequence_type_account_payment_group"
-msgid "Account Payment Group"
-msgstr "Account Payment Group"
-
-msgctxt "model:ir.ui.menu,name:menu_move_line_form"
-msgid "Lines to Pay"
-msgstr "Lines to Pay"
-
-msgctxt "model:ir.ui.menu,name:menu_payment_configuration"
-msgid "Payments"
-msgstr "Payments"
-
-msgctxt "model:ir.ui.menu,name:menu_payment_form"
-msgid "Payments"
-msgstr "Payments"
-
-msgctxt "model:ir.ui.menu,name:menu_payment_group_form"
-msgid "Payment Groups"
-msgstr "Payment Groups"
-
-msgctxt "model:ir.ui.menu,name:menu_payment_journal_form"
-msgid "Payment Journals"
-msgstr "Payment Journals"
-
-msgctxt "model:ir.ui.menu,name:menu_payments"
-msgid "Payments"
-msgstr "Payments"
-
-msgctxt "model:party.party.payment_direct_debit,name:"
-msgid "Party Payment Direct Debit"
-msgstr ""
-
-msgctxt "model:res.group,name:group_payment"
-msgid "Payment"
-msgstr "Payment"
-
-msgctxt "model:res.group,name:group_payment_approval"
-msgid "Payment Approval"
-msgstr "Payment Approval"
-
-msgctxt "selection:account.move.line,payment_kind:"
-msgid ""
-msgstr ""
-
-#, fuzzy
-msgctxt "selection:account.move.line,payment_kind:"
-msgid "Payable"
-msgstr "Payable"
-
-#, fuzzy
-msgctxt "selection:account.move.line,payment_kind:"
-msgid "Receivable"
-msgstr "Receivable"
-
-#, fuzzy
-msgctxt "selection:account.payment,kind:"
-msgid "Payable"
-msgstr "Payable"
-
-#, fuzzy
-msgctxt "selection:account.payment,kind:"
-msgid "Receivable"
-msgstr "Receivable"
-
-#, fuzzy
-msgctxt "selection:account.payment,state:"
-msgid "Approved"
-msgstr "Approved"
-
-#, fuzzy
-msgctxt "selection:account.payment,state:"
-msgid "Draft"
-msgstr "Draft"
-
-#, fuzzy
-msgctxt "selection:account.payment,state:"
-msgid "Failed"
-msgstr "Failed"
-
-#, fuzzy
-msgctxt "selection:account.payment,state:"
-msgid "Processing"
-msgstr "Processing"
-
-#, fuzzy
-msgctxt "selection:account.payment,state:"
-msgid "Succeeded"
-msgstr "Succeeded"
-
-#, fuzzy
-msgctxt "selection:account.payment.group,kind:"
-msgid "Payable"
-msgstr "Payable"
-
-#, fuzzy
-msgctxt "selection:account.payment.group,kind:"
-msgid "Receivable"
-msgstr "Receivable"
-
-msgctxt "selection:account.payment.journal,process_method:"
-msgid "Manual"
-msgstr ""
-
-msgctxt "view:account.configuration:"
-msgid "Group Sequence"
-msgstr ""
-
-#, fuzzy
-msgctxt "view:account.configuration:"
-msgid "Payment"
-msgstr "Payment"
-
-#, fuzzy
-msgctxt "view:account.payment.process.start:"
-msgid "Process Payments?"
-msgstr "Process Payments"
-
-msgctxt "view:account.payment:"
-msgid "Description"
-msgstr ""
-
-msgctxt "view:account.payment:"
-msgid "Other Info"
-msgstr ""
-
-msgctxt "wizard_button:account.move.line.pay,ask_journal,end:"
-msgid "Cancel"
-msgstr ""
-
-msgctxt "wizard_button:account.move.line.pay,ask_journal,start:"
-msgid "Pay"
-msgstr ""
-
-msgctxt "wizard_button:account.payment.process,start,end:"
-msgid "Cancel"
-msgstr ""
-
-msgctxt "wizard_button:account.payment.process,start,process:"
-msgid "Process"
-msgstr ""
-
-#, fuzzy
-msgctxt "view:account.move.line:"
-msgid "Pay Lines"
-msgstr "Pay Lines"
-
-#, fuzzy
-msgctxt "view:account.payment:"
-msgid "Approve"
-msgstr "Approved"
-
-#, fuzzy
-msgctxt "view:account.payment:"
-msgid "Draft"
-msgstr "Draft"
-
-#, fuzzy
-msgctxt "view:account.payment:"
-msgid "Succeed"
-msgstr "Succeeded"