BUG#31611 (Security risk with BINLOG statement):

Adding missing drop of user created for test case.


mysql-test/r/mysqlbinlog.result:
  Result file change.
mysql-test/t/mysqlbinlog.test:
  Dropping user that was added earlier in the test.

mysql-test/r/mysqlbinlog.result

@@ -350,4 +350,5 @@ SELECT * FROM t1;
 a	b
 1	root@localhost
 DROP DATABASE mysqltest1;
+DROP USER untrusted@localhost;
 End of 5.1 tests

mysql-test/t/mysqlbinlog.test

@@ -276,5 +276,6 @@ INSERT INTO t1 VALUES (1,USER());
 SELECT * FROM t1;
 connection default;
 DROP DATABASE mysqltest1;
+DROP USER untrusted@localhost;
 
 --echo End of 5.1 tests