staging: wlan-ng: remove redundant code in "#if 0" blocks

Remove two blocks of code that checkpatch identified as redundant
because they were enclosed in "#if...#endif". In the case of
prism2fw.c the associated "TODO" comment was retained.

Signed-off-by: Tim Collier <osdevtc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>