Revert "Disable DCHECK's that break cdex-redefine-stress tests." am: 7690e48b61

Original change: https://android-review.googlesource.com/c/platform/art/+/2197015

Change-Id: I67589c282f7439bcb7257e44085c96b0e79d4d7f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>