reverse: Derive address format from locale

Determine address format using nl_langinfo.

https://bugzilla.gnome.org/show_bug.cgi?id=725591
l10n: Update POTFILES.in

Remove file no longer using translated strings, from POTFILES.in.

https://bugzilla.gnome.org/show_bug.cgi?id=725591
reverse: Remove redundant ifdefs

These ifdefs were supposed to be there for conditional use of
nl_langinfo but since we didn't go that route, these ifdefs only make
the function to derive address format from locale, a noop.
reverse: Remove redundant curlies

This was pointed out in the review of commit 029c421 but not acted on.
Revert "reverse: Derive address format from locale"

This reverts commit 029c421d32647e4ab6fbbfa669947c24a27e69fe.

https://bugzilla.gnome.org/show_bug.cgi?id=725591