Disabling strict activity leak check

Started seeing presubmit blockers like:
https://android-build.corp.google.com/test_investigate/?invocationId=I51800010216065294&testResultId=TR60829041305611993

Bug: 187761685
Test: presubmit
Flag: N/A
Change-Id: Ic88f67e54d2dec4b244784abd2a15fbdfdf9e711
1 file changed