Revert 240802 "Fix create_nmf.py on non-English locale."

Suspected to break ppapi/nacl glibc tests

> Fix create_nmf.py on non-English locale.
> 
> It would fail parsing localized string otherwise. For example 'file format' is
> 'format de fichier' with LANG=fr_CA.UTF-8.
> 
> Fix file_arch could be used before being assigned.
> 
> R=sbc@chromium.org
> BUG=
> 
> Review URL: https://codereview.chromium.org/108213002

TBR=maruel@chromium.org

Review URL: https://codereview.chromium.org/116193002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@240860 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 240860