lib80211: Remove unused macro DRV_NAME

There is no caller in tree any more.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20200829115506.17828-1-yuehaibing@huawei.comSigned-off-by: Johannes Berg <johannes.berg@intel.com>

net/wireless/lib80211.c

@@ -26,8 +26,6 @@
 
 #include <net/lib80211.h>
 
-#define DRV_NAME        "lib80211"
-
 #define DRV_DESCRIPTION	"common routines for IEEE802.11 drivers"
 
 MODULE_DESCRIPTION(DRV_DESCRIPTION);