Update automatic trace deletion
Traceur currently removes files older than 4 weeks, deleting files until
3 remain. This isn't obvious behavior, since the description only
mentions that old files will be deleted. In addition, files are only
deleted when a trace is stopped.
This change updates Traceur to 1) delete all files in the trace
directory after 4 weeks regardless of how many files remain, and 2)
check if files need to be deleted more frequently.
Test: Shorten retention time and verify that all files are deleted.
Bug: 334486065
Change-Id: I467a806ef90288e0f6c9ac055574aa4f006eb25c
5 files changed