Remove unnecessary backup translations.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit 14a2b6214f)

translations/messages/de.po

@@ -485,27 +485,6 @@ msgstr ""
 msgid "&Manual Authentication"
 msgstr "&Manuelle Überprüfung"
 
-#~ msgid "Alt+G"
-#~ msgstr "Alt+E"
-
-#~ msgid "Alt+O"
-#~ msgstr "Alt+O"
-
-#~ msgid "Alt+V"
-#~ msgstr "Alt+V"
-
-#~ msgid "Alt+M"
-#~ msgstr "Alt+M"
-
-#~ msgid "Alt+W"
-#~ msgstr "Alt+I"
-
-#~ msgid "Alt+C"
-#~ msgstr "Alt+C"
-
-#~ msgid "Alt+H"
-#~ msgstr "Alt+H"
-
 #~ msgid "Yes"
 #~ msgstr "Ja"