The COMMERCIAL_LICENSE mechanism has been superseded by LICENSE_FLAGS
so remove the code that implements COMMERCIAL_LICENSE and replace it
with the corresponding LICENSE_FLAGS version.
(From OE-Core rev: 3735716996ec11691054d7f03db873afde89b143)
Signed-off-by: Tom Zanussi <tom.zanussi@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>