Remove unused file EffectWorker.h am: 5b8638c66c am: 2ee2dade75 am: 07a9fa87c6

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2746174

Change-Id: Ibc580b4fc07eb9e4c14d59633c1498a71050756e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>