Remove unused AutofillMsg_SelectAutofillSuggestionAtIndex.

BUG=

Review URL: https://chromiumcodereview.appspot.com/11189100

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@163448 0039d316-1c4b-4281-b951-d872f2087c98
3 files changed