Do not forward-declare localizations.

This is a remnant from when _L returned something different if a localization did not exist.

Author: orbitalquark

init.lua

@@ -17,8 +17,6 @@
 -- item with that function.
 -- @module ui.command_entry.open_file
 
-if not rawget(_L, 'Open file:') then _L['Open file:'] = 'Open file:' end
-
 --- Normalizes a Windows path by replacing '/' with '\\'.
 -- Also transforms Cygwin-style '/c/' root directories into 'C:\'.
 local function win32_normalize(path)