fix of partitioning tests that fails on windows + merge of minor cleanup

mysql-test/suite/parts/inc/partition_fail.inc

@@ -23,6 +23,7 @@ DROP TABLE t1;
 --eval $create_statement
 --eval $insert_statement
 --echo # State before failure
+--replace_result #p# #P# #sp# #SP#
 --list_files $DATADIR/test
 SHOW CREATE TABLE t1;
 --sorted_result
@@ -32,6 +33,7 @@ LOCK TABLE t1 WRITE;
 --eval $fail_statement
 --enable_abort_on_error
 --echo # State after failure
+--replace_result #p# #P# #sp# #SP#
 --list_files $DATADIR/test
 SHOW CREATE TABLE t1;
 --sorted_result

sql/ha_partition.cc

@@ -4099,12 +4099,6 @@ void ha_partition::position(const uchar *record)
   if (pad_length)
     memset((ref + PARTITION_BYTES_IN_POS + file->ref_length), 0, pad_length);
 
-#ifdef SUPPORTING_PARTITION_OVER_DIFFERENT_ENGINES
-#ifdef HAVE_purify
-  bzero(ref + PARTITION_BYTES_IN_POS + ref_length,
-        max_ref_length-ref_length);
-#endif /* HAVE_purify */
-#endif
   DBUG_VOID_RETURN;
 }