Revert^2 "Disable write-barrier elimination pass"

This reverts commit 7c1dd6e2d1893f288214413c4b97273980f3aa4a.

Reason for revert: build breakages, using a different number of temps vs the expected (crashing in https://cs.android.com/android/platform/superproject/main/+/main:art/compiler/optimizing/code_generator_x86_64.cc;l=5488;drc=7c1dd6e2d1893f288214413c4b97273980f3aa4a)

Change-Id: I843c039394dd666776ea5bcb5b10b1f47df12d53
30 files changed