Remove stack protector from checkjni functions too am: f531f197b8 am: 8aa67bdc67

Original change: https://android-review.googlesource.com/c/platform/art/+/2321421

Change-Id: I637df3dbc491978c9a402c3f85c1fbbbfd623897
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>