Revert "DCE SimplifyAlwaysThrowing optimizations" am: 026a662dd6 am: 092e3bb72a am: 85285a53f2 am: fd3f2c8933

Original change: https://android-review.googlesource.com/c/platform/art/+/2051913

Change-Id: Ib837792fc289d52856fa8d355fd3d76165b91d31
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>