Revert "Improve updateInputFlinger performance" am: a8ce8fc1d8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/24611291

Change-Id: I67a9bf7e805c8c3a507e62818486a4d4ee08094b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>