IB/SA: Remove unwanted braces

This fixes a checkpatch issue. The fix is needed
so that some of these functions can be moved around
in the forthcoming patches
Reviewed-by: NDon Hiatt <don.hiatt@intel.com>
Reviewed-by: NIra Weiny <ira.weiny@intel.com>
Signed-off-by: NDasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

drivers/infiniband/core/sa_query.c

@@ -945,9 +945,8 @@ static void update_sm_ah(struct work_struct *work)
 	}
 
 	new_ah = kmalloc(sizeof(*new_ah), GFP_KERNEL);
-	if (!new_ah) {
+	if (!new_ah)
 		return;
-	}
 
 	kref_init(&new_ah->ref);
 	new_ah->src_path_mask = (1 << port_attr.lmc) - 1;