removed test case no longer supported

mysql-test/r/partition.result

@@ -1267,14 +1267,4 @@ ALTER TABLE general_log PARTITION BY RANGE (TO_DAYS(event_time))
 ERROR HY000: Incorrect usage of PARTITION and log table
 ALTER TABLE general_log ENGINE = CSV;
 SET GLOBAL general_log = default;
-CREATE TABLE `t1` ( `a` varchar(1)) ENGINE=MyISAM
-PARTITION BY LIST (CASE a WHEN 'a' THEN 1
-WHEN 'b' THEN 2
-WHEN 'c' THEN 3
-END)  (
-PARTITION a VALUES IN (1), 
-PARTITION b VALUES IN (2),
-PARTITION c VALUES IN (3)
-);
-DROP TABLE t1;
 End of 5.1 tests

mysql-test/t/partition.test

@@ -1496,17 +1496,7 @@ SET GLOBAL general_log = default;
 
 #
 # Bug #27084 partitioning by list seems failing when using case 
+# BUG #18198: Case no longer supported, test case removed
 #
-CREATE TABLE `t1` ( `a` varchar(1)) ENGINE=MyISAM
- PARTITION BY LIST (CASE a WHEN 'a' THEN 1
- WHEN 'b' THEN 2
- WHEN 'c' THEN 3
- END)  (
- PARTITION a VALUES IN (1), 
- PARTITION b VALUES IN (2),
- PARTITION c VALUES IN (3)
-);
-
-DROP TABLE t1;
 
 --echo End of 5.1 tests