b43: Remove deprecated 'qual' from returned RX status

With the deprecation of the qual member of ieee80211_rx_status, that
calculation and an associated constant can be removed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/b43/b43.h

@@ -26,8 +26,6 @@
 # define B43_DEBUG	0
 #endif
 
-#define B43_RX_MAX_SSI			60
-
 /* MMIO offsets */
 #define B43_MMIO_DMA0_REASON		0x20
 #define B43_MMIO_DMA0_IRQ_MASK		0x24