Disabling strict activity leak check more aggressively than in ag/25340909

That CL wasn't sufficient, still seeing:
https://android-build.corp.google.com/test_investigate/?blocking=warning&invocationId=I37300010216048087&status=none&testResultId=TR78329041431354974

Bug: 187761685
Test: presubmit
Flag: N/A
Change-Id: I36979a8929ccb996b81e8d41ec75b9713258c1c3