Remove unused file EffectWorker.h am: 5b8638c66c

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

Change-Id: I267d8552dffaa257eea1f20f2c68b91449e089bf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>