Revert "HACK: allow apps with pre-release SDK RESTRICT AUTOMERGE"

This reverts commit 47a70c8253705c662ad13164da1d066d450ecc9a.

Reason for revert: time to get rid of the hack

Change-Id: I64b0cd74a124f68d8b72fcc6686634cc43989603
Bug: 233398506
Test: presubmits
3 files changed