Revert "Don't use ScopedJitSuspend for redefinition."

This reverts commit 5030b85ae2dbda2b456b9ad617ebdcc973d0840e.

Reason for revert: Failures on redefinition tests
https://ci.chromium.org/ui/p/art/builders/ci/target.arm.gcstress.cmc.32/257/overview
https://android-build.corp.google.com/build_explorer/artifacts_list/13657933/art-forcecopy/latest/

Change-Id: Id626e021b298247baf25489c2a480f5a699af0ae