Remove a unnecessary MERGE_FIXME of multi aggregate
It was noted while resolving PG 12 conflicts, then we re-enabled
serial/deserial functions and multi-phase aggregates on the merge
branch.
This MERGE_FIXME is unnecessary, remove it.
@@ -839,14 +839,6 @@ advance_transition_function(AggState *aggstate,
*
* When called, CurrentMemoryContext should be the per-query context.
*/
-/*
- * GPDB_12_MERGE_FIXME: diff added in the following commits need to be
- * incorporated into aggstate->phase->evaltrans (most likely in
- * ExecBuildAggTrans)
- *
- * - commit 652e34adaf2e00e8 (Make use of serial/deserial functions to enable
- * 2-phase aggregates.)
- */
static void
advance_aggregates(AggState *aggstate)
{
