Removed rdsmith@ from OWNERS for content/public/browser.

I was originally put in that file for ease of modification of the
downloads public content API during the downloads refactor.  The
refactor has quieted down, and I'm no longer working on downloads, so 
I'm removing myself to get away from getting other
content/public/browser reviews from people who don't read the note in
the file :-}.


Review URL: https://chromiumcodereview.appspot.com/13912005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@193412 0039d316-1c4b-4281-b951-d872f2087c98

content/public/browser/OWNERS

-# rdsmith@chromium.org only for download* files.  All other reviews
-# must use OWNERS from parent directories.  
-rdsmith@chromium.org