Do a proper cleanup in testcase for MDEV-30569

mysql-test/suite/federated/federatedx.result

@@ -2370,6 +2370,7 @@ CREATE TABLE t1_fed ENGINE=FEDERATED CONNECTION='s/t1';
 CREATE VIEW v AS SELECT * FROM t1_fed;
 SELECT * FROM v WHERE a IN ( SELECT b FROM t2);
 a
+DROP VIEW v;
 DROP TABLE t1_fed, t1, t2;
 DROP SERVER s;
 connection master;

mysql-test/suite/federated/federatedx.test

@@ -2108,6 +2108,7 @@ CREATE VIEW v AS SELECT * FROM t1_fed;
 
 SELECT * FROM v WHERE a IN ( SELECT b FROM t2);
 
+DROP VIEW v;
 DROP TABLE t1_fed, t1, t2;
 DROP SERVER s;