YARN-4300. [JDK8] Fix javadoc errors caused by wrong tags. (aajisaka)

(cherry picked from commit 8a68630dd126348b859e0fbe2d14079965016772)

hadoop-yarn-project/CHANGES.txt

@@ -968,6 +968,8 @@ Release 2.8.0 - UNRELEASED
     YARN-4169. Fix racing condition of TestNodeStatusUpdaterForLabels. 
     (Naganarasimha G R via wangda)
 
+    YARN-4300. [JDK8] Fix javadoc errors caused by wrong tags. (aajisaka)
+
 Release 2.7.2 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/nodelabels/ScriptBasedNodeLabelsProvider.java

@@ -87,8 +87,6 @@ public class ScriptBasedNodeLabelsProvider extends AbstractNodeLabelsProvider {
    * <li>Node Labels fetch script file exists</li>
    * </ol>
    *
-   * @param conf
-   * @return true if node labels script can be run.
    * @throws IOException
    */
   private void verifyConfiguredScript()
@@ -112,8 +110,6 @@ public class ScriptBasedNodeLabelsProvider extends AbstractNodeLabelsProvider {
 
   /**
    * Method used to terminate the Node Labels Fetch script.
-   *
-   * @throws Exception
    */
   @Override
   public void cleanUp() {