ath9k: remove unused ATH_PCI_VERSION

Our version goes by the kernel release.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/main.c

@@ -17,8 +17,6 @@
 #include <linux/nl80211.h>
 #include "ath9k.h"
 
-#define ATH_PCI_VERSION "0.1"
-
 static char *dev_info = "ath9k";
 
 MODULE_AUTHOR("Atheros Communications");