Remove experimental support for MAC cookies

Remove the experimental support for MAC cookies, as defined in
http://tools.ietf.org/html/draft-hammer-oauth-v2-mac-token . Support
for strongly-bound cookies will be provided by support for TLS
channel-bound cookies, as defined in
http://tools.ietf.org/html/draft-balfanz-tls-obc

BUG=none
TEST=none
R=abarth@chromium.org


Review URL: http://codereview.chromium.org/9700056

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@126928 0039d316-1c4b-4281-b951-d872f2087c98
10 files changed