This reverts commit 7569d51446.
Reason for revert: ag/17318348 moved the declaration of the protected-broadcasts from the telephony package to the platform's manifest, so a flag is no longer required when registering for these. In addition, ag/17307852 is syncing the behavior of unexported runtime receivers with that of manifest receivers by limiting the UIDs that can broadcast to these receivers to the root and system UIDs; with the RECEIVER_NOT_EXPORTED flag from this commit, these receivers would no longer be able to receive these broadcasts when sent from the telephony UID.
Bug: 225999840
Change-Id: Ifb15506434edabdfacf84c302881d0cf97d3add8
eef36c8917