Merge abelkin@bk-internal.mysql.com:/home/bk/mysql-4.0

into laptop.sanja.is.com.ua:/home/bell/mysql/bk/mysql-4.0

sql/sql_class.h

@@ -452,7 +452,6 @@ class THD :public ilink
   /* variables.transaction_isolation is reset to this after each commit */
   enum_tx_isolation session_tx_isolation;
   char	     scramble[9];
-  uint8	     query_cache_type;		// type of query cache processing
   bool       slave_thread;
   bool	     set_query_id,locked,count_cuted_fields,some_tables_deleted;
   bool	     no_errors, allow_sum_func, password, fatal_error;