Cleanup code around recording method trace events am: d265a80f86

Original change: https://android-review.googlesource.com/c/platform/art/+/2411662

Change-Id: I2575f0935b6a12cfb57dc559c16223aa7153f2e9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>