initiate_new_build() function is in async mode and could not be called
before another async function.
Also we could not initialize the build if user simply change a setting,
therefore remove this function.
(Bitbake rev: c184cefe90115623e2312ad2bbe34ea95788c129)
Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>