HDFS-10415. TestDistributedFileSystem#MyDistributedFileSystem attempts to set up statistics before initialize() is called (Mingliang Liu via cmccabe)

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDistributedFileSystem.java

@@ -359,7 +359,6 @@ public class TestDistributedFileSystem {
   
   private static class MyDistributedFileSystem extends DistributedFileSystem {
     MyDistributedFileSystem() {
-      statistics = new FileSystem.Statistics("myhdfs"); // can't mock finals
       dfs = mock(DFSClient.class);
     }
     @Override