Matt Harbison <matt_harbison@yahoo.com> [Fri, 27 Dec 2019 13:42:52 -0500] rev 43974
perf: fix the time measurement for pathcopies relative to p2
PyCharm flagged this as unused. But it seems more likely that it was intended
to reset the time for the p2 path.
Differential Revision: https://phab.mercurial-scm.org/D7742