Cleanup added to the owercase_table2.test test.

mysql-test/main/lowercase_table2.result

@@ -409,4 +409,5 @@ show tables like 't%';
 Tables_in_test (t%)
 t1
 t2
+drop temporary table t2, T1;
 # End of 11.2 tests

mysql-test/main/lowercase_table2.test

@@ -347,5 +347,6 @@ select table_name from information_schema.tables where table_schema='test'
   and table_name='T1';
 show tables like '_1';
 show tables like 't%';
+drop temporary table t2, T1;
 
 --echo # End of 11.2 tests