Fix mx tests

src/test/regress/expected/coordinator_evaluation_modify.out

@@ -833,11 +833,13 @@ EXECUTE router_with_only_function;
 SET citus.log_local_commands TO ON;
 SET search_path TO coordinator_evaluation_combinations_modify;
 -- returns 2 on the worker
+SET citus.enable_metadata_sync TO OFF;
 CREATE OR REPLACE FUNCTION get_constant_stable()
 RETURNS INT AS $$
 BEGIN
   RETURN 2;
 END; $$ language plpgsql STABLE;
+RESET citus.enable_metadata_sync;
 -- all local values
 INSERT INTO user_info_data (user_id, u_data) VALUES
 (3, '(''test3'', 3)'), (4, '(''test4'', 4)'), (7, '(''test7'', 7)'),

src/test/regress/sql/coordinator_evaluation_modify.sql

@@ -275,11 +275,13 @@ SET citus.log_local_commands TO ON;
 SET search_path TO coordinator_evaluation_combinations_modify;
 
 -- returns 2 on the worker
+SET citus.enable_metadata_sync TO OFF;
 CREATE OR REPLACE FUNCTION get_constant_stable()
 RETURNS INT AS $$
 BEGIN
   RETURN 2;
 END; $$ language plpgsql STABLE;
+RESET citus.enable_metadata_sync;
 
 
 -- all local values