fixed jdocs and removed already fixed norelease

core/src/main/java/org/elasticsearch/search/aggregations/InternalAggregation.java

@@ -195,9 +195,8 @@ public abstract class InternalAggregation implements Aggregation, ToXContent, Na
         return Objects.hash(name, metaData, pipelineAggregators, doHashCode());
     }
 
-    // norelease: make this abstract when all InternalAggregations implement this method
     /**
-     * Opportunity for subclasses to the {@link #hashCode(Object)} for this
+     * Opportunity for subclasses to the {@link #hashCode()} for this
      * class.
      **/
     protected int doHashCode() {