The Clutter class's ability to switch between tarballs and git isn't really
useful, so remove it. If it comes back, it should use the devupstream class.
(From OE-Core rev: 6150ec737bad895b9fb62f711449a259887ebd1b)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>