This reverts a change made in revision 31ac40083a ("Prevent temp files
in VolumeWriterBase from being deleted prematurely" in pull request #2637).
It's unclear what issue was being worked around by preventing the
removal of the temporary files (based on comments in pull request #2637,
it appears to be related to tests that failed only on Travis). However,
this workaround prevented the removal of temporary files created during
compact operations, which caused several users' temporary directories to
be filled up with files that should have been removed.
This concerns issue #3652.
Kenneth Hsu
daf0311bf8