The git recipe hasn't been touched since 2012 and is out of date, so simplify
the recipe by removing the git form and merging the remaining bb and inc file.
(From OE-Core rev: f71909f5eacc23d8533f1860ab890892d4f93f29)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>