Remove unused argument from ginInsertCleanup()

It's an oversight in commit dc943ad9.

src/backend/access/gin/ginfast.c

@@ -434,7 +434,7 @@ ginHeapTupleFastInsert(GinState *ginstate, GinTupleCollector *collector)
 	END_CRIT_SECTION();
 
 	if (needCleanup)
-		ginInsertCleanup(ginstate, false, true, NULL);
+		ginInsertCleanup(ginstate, true, NULL);
 }
 
 /*
@@ -732,9 +732,6 @@ processPendingPage(BuildAccumulator *accum, KeyArray *ka,
  * action of removing a page from the pending list really needs exclusive
  * lock.
  *
- * vac_delay indicates that ginInsertCleanup should call
- * vacuum_delay_point() periodically.
- *
  * fill_fsm indicates that ginInsertCleanup should add deleted pages
  * to FSM otherwise caller is responsible to put deleted pages into
  * FSM.
@@ -743,8 +740,7 @@ processPendingPage(BuildAccumulator *accum, KeyArray *ka,
  */
 void
 ginInsertCleanup(GinState *ginstate,
-				 bool vac_delay, bool fill_fsm,
-				 IndexBulkDeleteResult *stats)
+				 bool fill_fsm, IndexBulkDeleteResult *stats)
 {
 	Relation	index = ginstate->index;
 	Buffer		metabuffer,

src/backend/access/gin/ginvacuum.c

@@ -541,7 +541,7 @@ ginbulkdelete(IndexVacuumInfo *info, IndexBulkDeleteResult *stats,
 		/* Yes, so initialize stats to zeroes */
 		stats = (IndexBulkDeleteResult *) palloc0(sizeof(IndexBulkDeleteResult));
 		/* and cleanup any pending inserts */
-		ginInsertCleanup(&gvs.ginstate, true, false, stats);
+		ginInsertCleanup(&gvs.ginstate, false, stats);
 	}
 
 	/* we'll re-count the tuples each time */
@@ -654,7 +654,7 @@ ginvacuumcleanup(IndexVacuumInfo *info, IndexBulkDeleteResult *stats)
 		if (IsAutoVacuumWorkerProcess())
 		{
 			initGinState(&ginstate, index);
-			ginInsertCleanup(&ginstate, true, true, stats);
+			ginInsertCleanup(&ginstate, true, stats);
 		}
 		return stats;
 	}
@@ -667,7 +667,7 @@ ginvacuumcleanup(IndexVacuumInfo *info, IndexBulkDeleteResult *stats)
 	{
 		stats = (IndexBulkDeleteResult *) palloc0(sizeof(IndexBulkDeleteResult));
 		initGinState(&ginstate, index);
-		ginInsertCleanup(&ginstate, true, false, stats);
+		ginInsertCleanup(&ginstate, false, stats);
 	}
 
 	memset(&idxStat, 0, sizeof(idxStat));

src/include/access/gin_private.h

@@ -946,7 +946,7 @@ extern void ginHeapTupleFastCollect(GinState *ginstate,
 						OffsetNumber attnum, Datum value, bool isNull,
 						ItemPointer ht_ctid);
 extern void ginInsertCleanup(GinState *ginstate,
-				 bool vac_delay, bool fill_fsm, IndexBulkDeleteResult *stats);
+				 bool fill_fsm, IndexBulkDeleteResult *stats);
 
 /* ginpostinglist.c */