maint: remove an obsolete test comment

* tests/du/bind-mount-dir-cycle.sh: Remove obsolete comment
spotted by Gilles Espinasse.

diff --git a/tests/du/bind-mount-dir-cycle.sh b/tests/du/bind-mount-dir-cycle.sh
index d8d381afe3865a040ef4da577c7e2b88d95dc3a0..92b477358c5625260a52830d84a4c9f4c7e1b36e 100755 (executable)
--- a/tests/du/bind-mount-dir-cycle.sh
+++ b/tests/du/bind-mount-dir-cycle.sh
@@ -20,13 +20,7 @@
 print_ver_ du
 require_root_
 
-cleanup_()
-{
-  # When you take the undesirable shortcut of making /etc/mtab a link
-  # to /proc/mounts, unmounting "$other_partition_tmpdir" would fail.
-  # So, here we unmount a/b instead.
-  umount a/b
-}
+cleanup_() { umount a/b; }
 
 mkdir -p a/b || framework_failure_
 mount --bind a a/b \