remove blanks.

Author: hfutatzhanghb

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/async/TestRouterAsyncMountTable.java

@@ -163,6 +163,5 @@ public void testGetEnclosingRoot() throws Exception {
 
     // path does not need to exist
     assertEquals(routerFs.getEnclosingRoot(new Path("/regular/pathDNE")), new Path("/regular"));
-
   }
 }