diff --git a/locale/ja_JP.po b/locale/ja_JP.po
deleted file mode 100644
index 5f4158186f..0000000000
--- a/locale/ja_JP.po
+++ /dev/null
@@ -1,279 +0,0 @@
-#
-msgid ""
-msgstr "Content-Type: text/plain; charset=utf-8\n"
-
-msgctxt "error:purchase.purchase:"
-msgid ""
-"The warehouse \"%(purchase_warehouse)s\" of purchase \"%(purchase)s\" is "
-"different of the warehouse \"%(request_warehouse)s\" of the linked purchase "
-"request."
-msgstr ""
-
-msgctxt "error:purchase.purchase:"
-msgid ""
-"You can not delete the purchase \"%(purchase)s\" because it is linked to at "
-"least one purchase request."
-msgstr ""
-
-msgctxt "error:purchase.request.create_purchase:"
-msgid "Purchase price is missing for product \"%s\"."
-msgstr ""
-
-msgctxt "error:purchase.request.create_purchase:"
-msgid "This price is necessary for creating purchases."
-msgstr ""
-
-msgctxt "error:purchase.request:"
-msgid "Purchase requests are only created by the system."
-msgstr ""
-
-msgctxt "error:purchase.request:"
-msgid "You can not delete purchased request."
-msgstr ""
-
-msgctxt "field:purchase.line,requests:"
-msgid "Requests"
-msgstr ""
-
-msgctxt "field:purchase.request,company:"
-msgid "Company"
-msgstr ""
-
-msgctxt "field:purchase.request,computed_quantity:"
-msgid "Computed Quantity"
-msgstr ""
-
-msgctxt "field:purchase.request,computed_uom:"
-msgid "Computed UOM"
-msgstr ""
-
-msgctxt "field:purchase.request,create_date:"
-msgid "Create Date"
-msgstr ""
-
-msgctxt "field:purchase.request,create_uid:"
-msgid "Create User"
-msgstr ""
-
-msgctxt "field:purchase.request,default_uom_digits:"
-msgid "Default UOM Digits"
-msgstr ""
-
-msgctxt "field:purchase.request,description:"
-msgid "Description"
-msgstr ""
-
-msgctxt "field:purchase.request,exception_ignored:"
-msgid "Ignored Exception"
-msgstr ""
-
-msgctxt "field:purchase.request,id:"
-msgid "ID"
-msgstr ""
-
-msgctxt "field:purchase.request,origin:"
-msgid "Origin"
-msgstr ""
-
-msgctxt "field:purchase.request,party:"
-msgid "Party"
-msgstr ""
-
-msgctxt "field:purchase.request,product:"
-msgid "Product"
-msgstr ""
-
-msgctxt "field:purchase.request,purchase:"
-msgid "Purchase"
-msgstr ""
-
-msgctxt "field:purchase.request,purchase_date:"
-msgid "Best Purchase Date"
-msgstr ""
-
-msgctxt "field:purchase.request,purchase_line:"
-msgid "Purchase Line"
-msgstr ""
-
-msgctxt "field:purchase.request,quantity:"
-msgid "Quantity"
-msgstr ""
-
-msgctxt "field:purchase.request,rec_name:"
-msgid "Record Name"
-msgstr ""
-
-msgctxt "field:purchase.request,state:"
-msgid "State"
-msgstr ""
-
-msgctxt "field:purchase.request,stock_level:"
-msgid "Stock at Supply Date"
-msgstr ""
-
-msgctxt "field:purchase.request,supply_date:"
-msgid "Expected Supply Date"
-msgstr ""
-
-msgctxt "field:purchase.request,uom:"
-msgid "UOM"
-msgstr ""
-
-msgctxt "field:purchase.request,uom_digits:"
-msgid "UOM Digits"
-msgstr ""
-
-msgctxt "field:purchase.request,warehouse:"
-msgid "Warehouse"
-msgstr ""
-
-msgctxt "field:purchase.request,warehouse_required:"
-msgid "Warehouse Required"
-msgstr ""
-
-msgctxt "field:purchase.request,write_date:"
-msgid "Write Date"
-msgstr ""
-
-msgctxt "field:purchase.request,write_uid:"
-msgid "Write User"
-msgstr ""
-
-msgctxt "field:purchase.request.create_purchase.ask_party,company:"
-msgid "Company"
-msgstr ""
-
-msgctxt "field:purchase.request.create_purchase.ask_party,description:"
-msgid "Description"
-msgstr ""
-
-msgctxt "field:purchase.request.create_purchase.ask_party,id:"
-msgid "ID"
-msgstr ""
-
-msgctxt "field:purchase.request.create_purchase.ask_party,party:"
-msgid "Supplier"
-msgstr ""
-
-msgctxt "field:purchase.request.create_purchase.ask_party,product:"
-msgid "Product"
-msgstr ""
-
-msgctxt "field:purchase.request.handle.purchase.cancellation.start,id:"
-msgid "ID"
-msgstr ""
-
-msgctxt "model:ir.action,name:act_purchase_request_form"
-msgid "Purchase Requests"
-msgstr "Purchase Requests"
-
-msgctxt "model:ir.action,name:wizard_create_purchase"
-msgid "Create Purchase"
-msgstr "Create Purchase"
-
-msgctxt "model:ir.action,name:wizard_purchase_cancellation_handle_exception"
-msgid "Handle Purchase Cancellation"
-msgstr "Handle Purchase Cancellation"
-
-msgctxt ""
-"model:ir.action.act_window.domain,name:act_purchase_request_form_domain_all"
-msgid "All"
-msgstr "All"
-
-msgctxt ""
-"model:ir.action.act_window.domain,name:act_purchase_request_form_domain_draft"
-msgid "Draft"
-msgstr "Draft"
-
-msgctxt ""
-"model:ir.action.act_window.domain,name:act_purchase_request_form_domain_exception"
-msgid "Exception"
-msgstr "Exception"
-
-msgctxt ""
-"model:ir.model.button,string:purchase_hande_purchase_cancellation_exception_button"
-msgid "Handle Purchase Cancellation"
-msgstr "Handle Purchase Cancellation"
-
-msgctxt "model:ir.ui.menu,name:menu_purchase_request_form"
-msgid "Purchase Requests"
-msgstr "Purchase Requests"
-
-#, fuzzy
-msgctxt "model:purchase.request,name:"
-msgid "Purchase Request"
-msgstr "Purchase Request"
-
-msgctxt "model:purchase.request.create_purchase.ask_party,name:"
-msgid "Create Purchase Ask Party"
-msgstr ""
-
-msgctxt "model:purchase.request.handle.purchase.cancellation.start,name:"
-msgid "Handle Purchase Cancellation Exception - Start"
-msgstr ""
-
-msgctxt "model:res.group,name:group_purchase_request"
-msgid "Purchase Request"
-msgstr "Purchase Request"
-
-msgctxt "selection:purchase.request,state:"
-msgid "Cancel"
-msgstr ""
-
-msgctxt "selection:purchase.request,state:"
-msgid "Done"
-msgstr ""
-
-#, fuzzy
-msgctxt "selection:purchase.request,state:"
-msgid "Draft"
-msgstr "Draft"
-
-#, fuzzy
-msgctxt "selection:purchase.request,state:"
-msgid "Exception"
-msgstr "Exception"
-
-msgctxt "selection:purchase.request,state:"
-msgid "Purchased"
-msgstr ""
-
-msgctxt "view:purchase.request.handle.purchase.cancellation.start:"
-msgid "Do you want to cancel the request or to reset it to draft?"
-msgstr ""
-
-msgctxt "view:purchase.request:"
-msgid "Product Info"
-msgstr ""
-
-msgctxt "view:purchase.request:"
-msgid "Supply Info"
-msgstr ""
-
-msgctxt "wizard_button:purchase.request.create_purchase,ask_party,end:"
-msgid "Cancel"
-msgstr ""
-
-msgctxt "wizard_button:purchase.request.create_purchase,ask_party,start:"
-msgid "Continue"
-msgstr ""
-
-msgctxt ""
-"wizard_button:purchase.request.handle.purchase.cancellation,start,cancel_request:"
-msgid "Cancel Request"
-msgstr ""
-
-msgctxt ""
-"wizard_button:purchase.request.handle.purchase.cancellation,start,end:"
-msgid "Cancel"
-msgstr ""
-
-msgctxt ""
-"wizard_button:purchase.request.handle.purchase.cancellation,start,reset:"
-msgid "Reset to draft"
-msgstr ""
-
-#, fuzzy
-msgctxt "view:purchase.request:"
-msgid "Handle Purchase Cancellation"
-msgstr "Handle Purchase Cancellation"