Use the flag from test target

This change remove the flag dependency from the test module since the
test should use the flag from the test target.

Keep the FakeFeatureFlagsImpl to make it avaiable for the test.

Bug: 334947472
Test: atest TeleService:com.android.phone.security.SafetySourceReceiverTest
Change-Id: I3a5cf4d03faacb6c7cb5a6097f78252c8a23aaf4
2 files changed