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

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

Change-Id: I7d95824411221e2c4ba9a324b4916f0d6d51229c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>