Remove the broken piece of the API documentation template so the documentation
can be generated again.
(From OE-Core rev: 25a0d1b0b14a4fcd41ca08084a2f22db54dec58e)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>