Revert "Add isInitializing check in nterp header." am: 2432d6bb2f am: ff7d32506f

Original change: https://android-review.googlesource.com/c/platform/art/+/2184978

Change-Id: I08ce99f5e209e8a55d4ceae6a8fffd284453e97a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>