diff --git a/locale/ja_JP.po b/locale/ja_JP.po
deleted file mode 100644
index c8071eb241..0000000000
--- a/locale/ja_JP.po
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-msgid ""
-msgstr "Content-Type: text/plain; charset=utf-8\n"
-
-msgctxt "error:sale.sale:"
-msgid ""
-"The forcast quantity %(forecast_quantity)s%(default_uom)s of \"%(line)s\" is"
-" lower than %(quantity)s%(unit)s."
-msgstr ""
-
-msgctxt "model:res.group,name:group_sale_stock_quantity"
-msgid "Sale Stock Quantity"
-msgstr "Sale Stock Quantity"