RDMA/iwcm: Remove a set-but-not-used variable

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/core/iwcm.c

@@ -447,9 +447,6 @@ static void destroy_cm_id(struct iw_cm_id *cm_id)
  */
 void iw_destroy_cm_id(struct iw_cm_id *cm_id)
 {
-	struct iwcm_id_private *cm_id_priv;
-
-	cm_id_priv = container_of(cm_id, struct iwcm_id_private, id);
 	destroy_cm_id(cm_id);
 }
 EXPORT_SYMBOL(iw_destroy_cm_id);