remotefilelog: remove the `ensurestart` usage
The option does not seems to do what we want since it does not wait on the background
process actually starting (eg: taking the lock). And the race have been dealt
with another way anyway.
This effectively back out changeset
2c74337e6483.
Differential Revision: https://phab.mercurial-scm.org/D7590
remotefilelog: remove most of the debugwait* command in the tests
Since we use a dedicated developer config, we do not need them anymore.
Differential Revision: https://phab.mercurial-scm.org/D7589
remotefilelog: use the correct redirection in tests
The test were using '2>%1' which just redirect stderr in the "%1" file. The
intend was '2>&1' which redirect stderr on stdin.
This impact tests because some commit were picking up this '%1' files.
Differential Revision: https://phab.mercurial-scm.org/D7588
remotefilelog: remove most sleep in tests
Now that we removed most of the races, we can remove the infamous sleeps.
Differential Revision: https://phab.mercurial-scm.org/D7587