qa/suites/crimson-rados: disable chance_trim_stale_osdmaps

Avoid "no valid command" in teuthology logs.
trim stale osdmaps is not planned to be introduce soon:
See: https://tracker.ceph.com/issues/65288

Signed-off-by: Matan Breizman <[email protected]>
(cherry picked from commit aa3ff63)

Author: Matan-B

qa/suites/crimson-rados/thrash/thrashers/default.yaml

@@ -32,3 +32,4 @@ tasks:
     chance_inject_pause_short: 0
     chance_thrash_cluster_full: 0
     chance_reset_purged_snaps_last: 0
+    chance_trim_stale_osdmaps: 0

qa/suites/crimson-rados/thrash_simple/thrashers/simple.yaml

@@ -33,3 +33,4 @@ tasks:
     chance_inject_pause_short: 0
     chance_thrash_cluster_full: 0
     chance_reset_purged_snaps_last: 0
+    chance_trim_stale_osdmaps: 0