Staging: brcm80211: typedefs.h: remove some unused #if logic

We never care about __STRICT_ANSI__ from within the kernel, so remove
this logic.

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>