YARN-7906. Fix mvn site fails with error: Multiple sources of package comments found for package o.a.h.y.client.api.impl. (Akira Ajisaka via wangda)

Change-Id: I20221d97446e97f208d587eacbc60448c11ffd48
(cherry picked from commit e795833d8c1981cab85a10b4e516cd0c5423c792)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/resource/package-info.java

@@ -18,6 +18,4 @@
 /**
  * API related to resources.
  */
-@InterfaceAudience.Private
 package org.apache.hadoop.yarn.api.resource;
-import org.apache.hadoop.classification.InterfaceAudience;