diff --git a/locale/ja_JP.po b/locale/ja_JP.po
deleted file mode 100644
index 5f48017bb4..0000000000
--- a/locale/ja_JP.po
+++ /dev/null
@@ -1,53 +0,0 @@
-#
-msgid ""
-msgstr "Content-Type: text/plain; charset=utf-8\n"
-
-msgctxt "error:stock.lot:"
-msgid "You cannot change the unit of a lot which is associated to done moves."
-msgstr ""
-
-msgctxt "error:stock.move:"
-msgid ""
-"The quantity in \"%(name)s\" of the lot \"%(lot)s\" cannot be greater than "
-"%(quantity)s%(unit)s."
-msgstr ""
-
-msgctxt "field:product.product,lot_unit:"
-msgid "Lot Unit"
-msgstr ""
-
-msgctxt "field:product.template,lot_unit:"
-msgid "Lot Unit"
-msgstr ""
-
-msgctxt "field:stock.lot,product_default_uom_category:"
-msgid "Default Product UoM Category"
-msgstr ""
-
-msgctxt "field:stock.lot,unit:"
-msgid "Unit"
-msgstr ""
-
-msgctxt "field:stock.lot,unit_digits:"
-msgid "Unit Digits"
-msgstr ""
-
-msgctxt "field:stock.lot,unit_quantity:"
-msgid "Quantity"
-msgstr ""
-
-msgctxt "help:product.product,lot_unit:"
-msgid "The default unit for lot."
-msgstr ""
-
-msgctxt "help:product.template,lot_unit:"
-msgid "The default unit for lot."
-msgstr ""
-
-msgctxt "help:stock.lot,unit:"
-msgid "The biggest unit for the lot."
-msgstr ""
-
-msgctxt "help:stock.lot,unit_quantity:"
-msgid "The maximal quantity for the lot."
-msgstr ""