Revert 245489 "make utf-8 default encoding for remoting_localize.py"

Broke compilation on windows clobber builder: mc : error : -u switch cannot be used with non-Unicode message file!

> make utf-8 default encoding for remoting_localize.py
> 
> Review URL: https://codereview.chromium.org/140793007

TBR=sergeyu@chromium.org

Review URL: https://codereview.chromium.org/141003004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245500 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245500