ceph: delete redundant douts in con_get/put()

We print session's refcount in debug message inside
ceph_put_mds_session() and get_session(), so we don't have to
print it in con_get()/__ceph_lookup_mds_session()/con_put().
Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

fs/ceph/mds_client.c

@@ -4609,11 +4609,8 @@ static struct ceph_connection *con_get(struct ceph_connection *con)
 {
 	struct ceph_mds_session *s = con->private;
 
-	if (get_session(s)) {
-		dout("mdsc con_get %p ok (%d)\n", s, refcount_read(&s->s_ref));
+	if (get_session(s))
 		return con;
-	}
-	dout("mdsc con_get %p FAIL\n", s);
 	return NULL;
 }
 
@@ -4621,7 +4618,6 @@ static void con_put(struct ceph_connection *con)
 {
 	struct ceph_mds_session *s = con->private;
 
-	dout("mdsc con_put %p (%d)\n", s, refcount_read(&s->s_ref) - 1);
 	ceph_put_mds_session(s);
 }