Staging: brcm80211: remove unneeded #ifdef checks

For a .h file, you never need to check it, the .h file does it
itself.  For the typedef.h file, this is never needed.

Cc: Brett Rudley <brudley@broadcom.com>
Cc: Henry Ptasinski <henryp@broadcom.com>
Cc: Nohee Ko <noheek@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>