Fix outdated comment

In transformLockingClause(), there was a comment that listed all the
RTE kinds it did not want to process, but that list was already
outdated about what RTE kinds actually exist.  Rather than keeping
that up-to-date, just say "all other".

Discussion: https://www.postgresql.org/message-id/flat/CAHg%2BQDcE9wp6nOEC3SCRQ90nrCO%3DQF%2BOZq1MG8Qc6hnusmogqw%40mail.gmail.com

src/backend/parser/analyze.c

@@ -3867,7 +3867,7 @@ transformLockingClause(ParseState *pstate, Query *qry, LockingClause *lc,
 										   allrels, true);
 					break;
 				default:
-					/* ignore JOIN, SPECIAL, FUNCTION, VALUES, CTE RTEs */
+					/* ignore all other RTE kinds */
 					break;
 			}
 		}