Remove CSS selector profiler types from protocol.json

CSS selector profiler has been dropped a while ago. These types are not used anymore.

BUG=None
R=alph@chromium.org

Review URL: https://codereview.chromium.org/114023002

git-svn-id: svn://svn.chromium.org/blink/trunk@163785 bbb929c8-8fbe-4397-9dbb-9b2b20218538