2nd version
During tmp tables cleanup we get the handler for temporary table
and delete table using handler method.


sql/mysql_priv.h:
  added function prototype
sql/mysqld.cc:
  added call of mysql_rm_tmp_tables() function
sql/sql_base.cc:
  mysql_rm_tmp_tables()
  -removed from table_cache_init
  -During tmp tables cleanup we get the handler for temporary table
   and delete table using handler method. 
   it allows to remove orphan records from data dictionary(InnoDB)