Remove redundant compare for x86 OpDecAndBranch

For x86 OpDecAndBranch, use the flag set by the subtract to remove
the redundant compare when generating the branch to target.

Change-Id: I11e52f6d46df74cfaeeadac524dace94e2c60703
Signed-off-by: Yixin Shou <yixin.shou@intel.com>
1 file changed