Revert^2 "ResultDispatcher: Support batched result callbacks" am: 64ca4bb38a

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/google/camera/+/26555257

Change-Id: Ic2a0e3ccf103751e710a9273bbc31e7e6bf3630e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>