multipath-shutdown: fix shell syntax

seems like a misplaced $()

modules.d/90multipath/multipath-shutdown.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 for i in $(multipath -l -v1); do
-    if ! $(dmsetup table $i | sed -n '/.*queue_if_no_path.*/q1') ; then
+    if ! dmsetup table $i | sed -n '/.*queue_if_no_path.*/q1' ; then
         dmsetup message $i 0 fail_if_no_path
     fi
 done