Remove quotes around SQL statement in error message

src/backend/commands/event_trigger.c

@@ -231,7 +231,7 @@ validate_ddl_tags(const char *filtervar, List *taglist)
 			ereport(ERROR,
 				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
 				 /* translator: %s represents an SQL statement name */
-				 errmsg("event triggers are not supported for \"%s\"",
+				 errmsg("event triggers are not supported for %s",
 					tag)));
 	}
 }

src/test/regress/expected/event_trigger.out

@@ -38,7 +38,7 @@ ERROR:  filter value "create skunkcabbage" not recognized for filter variable "t
 create event trigger regress_event_trigger2 on ddl_command_start
    when tag in ('DROP EVENT TRIGGER')
    execute procedure test_event_trigger();
-ERROR:  event triggers are not supported for "DROP EVENT TRIGGER"
+ERROR:  event triggers are not supported for DROP EVENT TRIGGER
 -- should fail, can't have same filter variable twice
 create event trigger regress_event_trigger2 on ddl_command_start
    when tag in ('create table') and tag in ('CREATE FUNCTION')