Remove unused file EffectWorker.h am: 5b8638c6 am: 2ee2dade am: 07a9fa87...

Remove unused file EffectWorker.h am: 5b8638c6 am: 2ee2dade am: 07a9fa87 am: 81b6b5d6 am: 7668deda

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



Change-Id: I7b23dc1465521703a400e53ead5b50effd481733
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>