HDFS-8135. Remove the deprecated FSConstants class. Contributed by Li Lu.

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -319,6 +319,8 @@ Release 2.8.0 - UNRELEASED
 
   INCOMPATIBLE CHANGES
 
+    HDFS-8135. Remove the deprecated FSConstants class. (Li Lu via wheat9)
+
   NEW FEATURES
 
   IMPROVEMENTS

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/FSConstants.java

@@ -1,27 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.hadoop.hdfs.protocol;
-
-/**
- * @deprecated Please use {@link HdfsConstants}. This class
- * is left only for other ecosystem projects which depended on
- * it for SafemodeAction and DatanodeReport types.
- */
-@Deprecated
-public abstract class FSConstants extends HdfsConstants {
-}