Remove obsolete comment atop ri_PlanCheck.

Amit Kapila · Amit Kapila · commit 805b816305b6 · 2020-11-25T09:14:45.000+05:30
Commit 5b7ba75 removed the unused parameter but forgot to update the nearby comments. Author: Li Japin Backpatch-through: 13, where it was introduced Discussion: https://postgr.es/m/0E2F62A2-B2F1-4052-83AE-F0BEC8A75789@hotmail.com
diff --git a/src/backend/utils/adt/ri_triggers.c b/src/backend/utils/adt/ri_triggers.c
@@ -2130,9 +2130,6 @@ InvalidateConstraintCacheCallBack(Datum arg, int cacheid, uint32 hashvalue)
 
 /*
  * Prepare execution plan for a query to enforce an RI restriction
- *
- * If cache_plan is true, the plan is saved into our plan hashtable
- * so that we don't need to plan it again.
  */
 static SPIPlanPtr
 ri_PlanCheck(const char *querystr, int nargs, Oid *argtypes,
