diff --git a/locale/ja_JP.po b/locale/ja_JP.po
deleted file mode 100644
index 323f611bf6..0000000000
--- a/locale/ja_JP.po
+++ /dev/null
@@ -1,71 +0,0 @@
-#
-msgid ""
-msgstr "Content-Type: text/plain; charset=utf-8\n"
-
-msgctxt "field:purchase.product_supplier,weekdays:"
-msgid "Week Days"
-msgstr ""
-
-msgctxt "field:purchase.product_supplier.day,create_date:"
-msgid "Create Date"
-msgstr ""
-
-msgctxt "field:purchase.product_supplier.day,create_uid:"
-msgid "Create User"
-msgstr ""
-
-msgctxt "field:purchase.product_supplier.day,id:"
-msgid "ID"
-msgstr ""
-
-msgctxt "field:purchase.product_supplier.day,product_supplier:"
-msgid "Supplier"
-msgstr ""
-
-msgctxt "field:purchase.product_supplier.day,rec_name:"
-msgid "Record Name"
-msgstr ""
-
-msgctxt "field:purchase.product_supplier.day,weekday:"
-msgid "Week Day"
-msgstr ""
-
-msgctxt "field:purchase.product_supplier.day,write_date:"
-msgid "Write Date"
-msgstr ""
-
-msgctxt "field:purchase.product_supplier.day,write_uid:"
-msgid "Write User"
-msgstr ""
-
-msgctxt "model:purchase.product_supplier.day,name:"
-msgid "Product Supplier Day"
-msgstr ""
-
-msgctxt "selection:purchase.product_supplier.day,weekday:"
-msgid "Friday"
-msgstr ""
-
-msgctxt "selection:purchase.product_supplier.day,weekday:"
-msgid "Monday"
-msgstr ""
-
-msgctxt "selection:purchase.product_supplier.day,weekday:"
-msgid "Saturday"
-msgstr ""
-
-msgctxt "selection:purchase.product_supplier.day,weekday:"
-msgid "Sunday"
-msgstr ""
-
-msgctxt "selection:purchase.product_supplier.day,weekday:"
-msgid "Thursday"
-msgstr ""
-
-msgctxt "selection:purchase.product_supplier.day,weekday:"
-msgid "Tuesday"
-msgstr ""
-
-msgctxt "selection:purchase.product_supplier.day,weekday:"
-msgid "Wednesday"
-msgstr ""