Remove unnecessary comments on tests

src/backend/distributed/metadata/metadata_sync.c

@@ -207,6 +207,8 @@ StartMetadataSyncToNode(const char *nodeNameString, int32 nodePort)
 		return;
 	}
 
+	UseCoordinatedTransaction();
+
 	/*
 	 * One would normally expect to set hasmetadata first, and then metadata sync.
 	 * However, at this point we do the order reverse.

src/test/regress/multi_mx_schedule

@@ -15,7 +15,7 @@
 # ---
 test: multi_extension
 test: multi_test_helpers multi_test_helpers_superuser
-#test: multi_mx_node_metadata
+test: multi_mx_node_metadata
 test: multi_cluster_management
 test: multi_mx_function_table_reference
 test: multi_test_catalog_views

src/test/regress/sql/single_node.sql

@@ -78,16 +78,6 @@ SELECT 1 FROM master_remove_node('localhost', :worker_1_port);
 SELECT 1 FROM citus_set_coordinator_host('127.0.0.1');
 
 -- adding workers with specific IP is ok now
-select * from pg_dist_partition;
-select * from citus_tables;
-\c - - - :worker_1_port
-SET search_path TO single_node;
-\d
-select * from pg_dist_partition;
-
-\c - - - :master_port
-SET search_path TO single_node;
-
 set citus.log_remote_commands to true;
 SELECT 1 FROM master_add_node('127.0.0.1', :worker_1_port);
 SELECT 1 FROM master_remove_node('127.0.0.1', :worker_1_port);