Remove FrameRate Enum to allow all possible frame rate values am: 026a007fe4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24922792

Change-Id: I0489564f168ce15799edc83453f41803a72dc397
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>