Move YARN-4524 from 2.9 to 2.8

(cherry picked from commit c56d46307ada0af23b0f46398fefe49f95c0c4c4)

hadoop-yarn-project/CHANGES.txt

@@ -84,8 +84,6 @@ Release 2.9.0 - UNRELEASED
 
     YARN-4522. Queue acl can be checked at app submission. (Jian He via wangda)
 
-    YARN-4524. Cleanup AppSchedulingInfo. (Karthik Kambatla via wangda)
-
     YARN-4438. Implement RM leader election with curator. (Jian He via xgong)
 
     YARN-4571. Make app id/name available to the yarn authorizer provider for 
@@ -709,6 +707,8 @@ Release 2.8.0 - UNRELEASED
     YARN-4304. AM max resource configuration per partition to be displayed/updated
     correctly in UI and in various partition related metrics. (Sunil G via wangda)
 
+    YARN-4524. Cleanup AppSchedulingInfo. (Karthik Kambatla via wangda)
+
   OPTIMIZATIONS
 
     YARN-3339. TestDockerContainerExecutor should pull a single image and not