test-revert: remove obsolete comment about known misbehavior
It seems like the last known misbehvior that the comment was referring
to was dealt with in 2ff28e07d7d6 (revert: properly back up added
files with local modification, 2014-08-31).
--- a/tests/test-revert.t Mon Nov 03 11:06:51 2014 -0600
+++ b/tests/test-revert.t Sun Oct 19 22:09:03 2014 -0700
@@ -422,9 +422,6 @@
All known states are not tested yet. See inline documentation for details.
Special cases from merge and rename are not tested by this section.
-There are also multiple cases where the current revert implementation is known to
-slightly misbehave.
-
Write the python script to disk
-------------------------------