staging: comedi: mite: remove DEBUG_MITE code

The code protected by the DEBUG_MITE define outputs some development
debug information. This information is just added noise in the final
driver. Remove the code.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>