Adjust comment atop ExecShutdownNode.

Amit Kapila · Amit Kapila · commit f34d4b79fab4 · 2018-08-13T10:12:39.000+05:30
After commits a315b96 and b805b63ac2, part of the comment atop ExecShutdownNode is redundant. Adjust it. Author: Amit Kapila Backpatch-through: 10 where both the mentioned commits are present. Discussion: https://postgr.es/m/86137f17-1dfb-42f9-7421-82fd786b04a1@anayrat.info
diff --git a/src/backend/executor/execProcnode.c b/src/backend/executor/execProcnode.c
@@ -736,11 +736,7 @@ ExecEndNode(PlanState *node)
  * ExecShutdownNode
  *
  * Give execution nodes a chance to stop asynchronous resource consumption
- * and release any resources still held.  Currently, this is only used for
- * parallel query, but we might want to extend it to other cases also (e.g.
- * FDW).  We might also want to call it sooner, as soon as it's evident that
- * no more rows will be needed (e.g. when a Limit is filled) rather than only
- * at the end of ExecutorRun.
+ * and release any resources still held.
  */
 bool
 ExecShutdownNode(PlanState *node)
