Merge "Remove unreachable code now that we no longer cache protected buffers"...

Merge "Remove unreachable code now that we no longer cache protected buffers" into sc-dev am: 96e84d98 am: 0349c776 am: 7f5e15b3

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/14441750

Change-Id: Id77301007fb8230741b9de91ae465cd415bfb8d9