qa/suites: drop --show-reachable=yes from fs:valgrind tests

Drop --show-reachable=yes from fs:valgrind tests as it shows CommandFailedError,
which fails starting cephfs-mirror daemon and prevents the valgrind checks and reports.
rbd:valgrind tests doesn't use --show-reachable=yes too.
So dropping --show-reachable=yes to make it analogous to rbd:valgrind.

Fixes: https://tracker.ceph.com/issues/64752
Fixes: https://tracker.ceph.com/issues/62221
Signed-off-by: Jos Collin <[email protected]>

Author: joscollin

qa/suites/fs/valgrind/mirror/cephfs-mirror/one-per-cluster.yaml

@@ -4,4 +4,4 @@ meta:
 tasks:
 - cephfs-mirror:
     client: client.mirror
-    valgrind: [--tool=memcheck, --leak-check=full, --show-reachable=yes]
+    valgrind: [--tool=memcheck, --leak-check=full]