[gnome-nibbles] Update POTFILES.in

[Piotr Drąg <piotrdrag src gnome org>]

commit 6d6a18b5eeaa433642680c7fbccd9608f87e4537
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Wed May 8 18:10:57 2019 +0200

    Update POTFILES.in

 po/POTFILES.in | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index a9a5d73..2dc1dce 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -1,7 +1,6 @@
 # List of source files containing translatable strings.
 # Please keep this file in alphabetical order.
 data/controls-grid.ui
-data/nibbles-menus.ui
 data/nibbles.ui
 data/org.gnome.Nibbles.appdata.xml.in
 data/org.gnome.Nibbles.desktop.in