qa: stop testing simple messenger in CephFS suites

Simple messenger is on it's way out and it doesn't work with msgr2.

Fixes: http://tracker.ceph.com/issues/38676
Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>

qa/suites/fs/basic_functional/tasks/volume-client/task/test/test.yaml

@@ -1,11 +1,3 @@
-overrides:
-  ceph:
-    mon_bind_msgr2: false
-    conf:
-      global:
-        ms type: simple
-        ms bind msgr2: false
-
 tasks:
   - cephfs_test_runner:
       modules:

qa/suites/kcephfs/recovery/tasks/sessionmap.yaml

@@ -1,9 +1,5 @@
-
 overrides:
   ceph:
-    conf:
-      global:
-        ms type: simple
     log-whitelist:
       - client session with non-allowable root
 

qa/suites/kcephfs/recovery/tasks/volume-client.yaml

@@ -1,10 +1,3 @@
-
-overrides:
-  ceph:
-    conf:
-      global:
-        ms type: simple
-
 tasks:
   - cephfs_test_runner:
       fail_on_skip: false