Rip autofill code out of webdataservice

As it is now handled by AutofillWebDataService, and switch the last 2 clients (WebDataServiceAutofillTests and BrowsingDataRemover) over to using AutofillWebDataService.

TBR=mkwst@chromium.org,joi@chromium.org
(mkwst@ for browsing_data/ change, joi@ for api/)

BUG=181277


Review URL: https://chromiumcodereview.appspot.com/12987023

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@190757 0039d316-1c4b-4281-b951-d872f2087c98
11 files changed