Temporarily revert "Update branch coalescing to be a PowerPC specific pass"

Description

Temporarily revert "Update branch coalescing to be a PowerPC specific pass"
From comments and code review it wasn't intended to be enabled by default yet.

This reverts commit r311588.

Details

Committed
echristoAug 30 2017, 10:56 PM
Parents
rL312213: AMDGPU: Don't assert in TTI with fp32 denorms enabled
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