diff --git a/locale/ja_JP.po b/locale/ja_JP.po
deleted file mode 100644
index 014fff7aa4..0000000000
--- a/locale/ja_JP.po
+++ /dev/null
@@ -1,102 +0,0 @@
-#
-msgid ""
-msgstr "Content-Type: text/plain; charset=utf-8\n"
-
-msgctxt "field:account.ec_sales_list,amount:"
-msgid "Amount"
-msgstr ""
-
-msgctxt "field:account.ec_sales_list,code:"
-msgid "Code"
-msgstr ""
-
-msgctxt "field:account.ec_sales_list,company_tax_identifier:"
-msgid "Company Tax Identifier"
-msgstr ""
-
-msgctxt "field:account.ec_sales_list,create_date:"
-msgid "Create Date"
-msgstr ""
-
-msgctxt "field:account.ec_sales_list,create_uid:"
-msgid "Create User"
-msgstr ""
-
-msgctxt "field:account.ec_sales_list,currency:"
-msgid "Currency"
-msgstr ""
-
-msgctxt "field:account.ec_sales_list,currency_digits:"
-msgid "Currency Digits"
-msgstr ""
-
-msgctxt "field:account.ec_sales_list,id:"
-msgid "ID"
-msgstr ""
-
-msgctxt "field:account.ec_sales_list,party_tax_identifier:"
-msgid "Party Tax Identifier"
-msgstr ""
-
-msgctxt "field:account.ec_sales_list,rec_name:"
-msgid "Record Name"
-msgstr ""
-
-msgctxt "field:account.ec_sales_list,write_date:"
-msgid "Write Date"
-msgstr ""
-
-msgctxt "field:account.ec_sales_list,write_uid:"
-msgid "Write User"
-msgstr ""
-
-msgctxt "field:account.ec_sales_list.context,company:"
-msgid "Company"
-msgstr ""
-
-msgctxt "field:account.ec_sales_list.context,fiscalyear:"
-msgid "Fiscal Year"
-msgstr ""
-
-msgctxt "field:account.ec_sales_list.context,id:"
-msgid "ID"
-msgstr ""
-
-msgctxt "field:account.ec_sales_list.context,period:"
-msgid "Period"
-msgstr ""
-
-msgctxt "field:account.tax,ec_sales_list_code:"
-msgid "EC Sales List Code"
-msgstr ""
-
-msgctxt "field:account.tax.template,ec_sales_list_code:"
-msgid "EC Sales List Code"
-msgstr ""
-
-#, fuzzy
-msgctxt "model:account.ec_sales_list,name:"
-msgid "EC Sales List"
-msgstr "EC Sales List"
-
-msgctxt "model:account.ec_sales_list.context,name:"
-msgid "EC Sales List Context"
-msgstr ""
-
-msgctxt "model:ir.action,name:act_ec_sales_list_form"
-msgid "EC Sales List"
-msgstr "EC Sales List"
-
-msgctxt "model:ir.ui.menu,name:menu_ec_sales_list"
-msgid "EC Sales List"
-msgstr "EC Sales List"
-
-#, fuzzy
-msgctxt "view:account.tax.template:"
-msgid "EC Sales List"
-msgstr "EC Sales List"
-
-#, fuzzy
-msgctxt "view:account.tax:"
-msgid "EC Sales List"
-msgstr "EC Sales List"