tg3: Remove define and single use of GET_CHIP_REV_ID

It's the same value as tp->pci_chip_rev_id so use that
instead.  This makes all CHIPREV_ID_<foo> tests the same.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index b676728..3e27f2e 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -120,9 +120,7 @@
 #define  MISC_HOST_CTRL_TAGGED_STATUS	 0x00000200
 #define  MISC_HOST_CTRL_CHIPREV		 0xffff0000
 #define  MISC_HOST_CTRL_CHIPREV_SHIFT	 16
-#define  GET_CHIP_REV_ID(MISC_HOST_CTRL) \
-	 (((MISC_HOST_CTRL) & MISC_HOST_CTRL_CHIPREV) >> \
-	  MISC_HOST_CTRL_CHIPREV_SHIFT)
+
 #define  CHIPREV_ID_5700_A0		 0x7000
 #define  CHIPREV_ID_5700_A1		 0x7001
 #define  CHIPREV_ID_5700_B0		 0x7100