Revert "AMDGPU: Re-do update for branch-relaxation test"
Revert "AMDGPU: Re-do update for branch-relaxation test"

This commit also relied on r296812, which I just reverted. We should probably
apply it again, after the r296812 has been discussed and been reapplied in some
variant.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@296820 91177308-0d34-0410-b5e6-96231b3b80d8

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