Revert "When adding event listener, use fuzzy window for last event time."

This reverts commit 6db6d622.

Reason for revert: issues such as b/131709052 where questionable frame pacing is observed. We could play with the ratios a bit but that would require a bit of tuning. Also, it looks like b/128918820 wasn't resolved by this change anyways so there's no evidence that this is a benefit.

Bug: 131709052
Test: systrace
Change-Id: I37656a8991a7040051cd5590c12b2a9a627e02a2