Revert "adding a pattern for broadcastm"

This reverts commit r317457.

Change-Id: If07f1fca1e3453d16c1dac906e87768661384e91

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317462 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed