Revert "Prevent apps from creating blocked channel groups"

This reverts commit 1d65ccb49a56b426894b6f74ffdef6cd7b58c599.

Reason for revert: Possible culprit of b/214331751

Change-Id: I315a4676a7f9107631f85a7be1cbac977bfbfb8f
2 files changed