client.c:
  Removed call to clear_slave_vio in end_server().  Removed header declaration of clear_slave_vio
slave.cc:
  Removed clear_slave_vio function and added calls to thd->clear_active_vio before each call to end_server()


sql/slave.cc:
  Removed clear_slave_vio function and added calls to thd->clear_active_vio before each call to end_server()
sql-common/client.c:
  Removed call to clear_slave_vio in end_server().  Removed header declaration of clear_slave_vio