Revert "ART: Support per PID stack trace files."

Remove leftovers.

This reverts commit 84695aef89a3c42ea81c23f0590ae2ceca09ce6f.

Bug: 32064548
Bug: 77288304
Test: m test-art-host
Change-Id: I9b6f7f7daddd75ff47c7b17a91738858f0023605
1 file changed