Revert "R600: Non vector only instruction can be scheduled on trans unit"

This reverts commit 98ce62780ea7185ba710868bf83c8077e8d7f6d6.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187526 91177308-0d34-0410-b5e6-96231b3b80d8