ath9k: remove useless ath9k driver version information

Versioning for ath9k is pointless we have kept it at 0.1
since the initial release so its meaningless. We put more emphasis
on kernel release or dated wireless-testing master tag
as per John's tagging.
Signed-off-by: NLuis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath9k/main.c

@@ -2588,13 +2588,12 @@ static int __init ath9k_init(void)
 {
 	int error;
 
-	printk(KERN_INFO "%s: %s\n", dev_info, ATH_PCI_VERSION);
-
 	/* Register rate control algorithm */
 	error = ath_rate_control_register();
 	if (error != 0) {
 		printk(KERN_ERR
-			"Unable to register rate control algorithm: %d\n",
+			"ath9k: Unable to register rate control "
+			"algorithm: %d\n",
 			error);
 		goto err_out;
 	}
@@ -2602,7 +2601,7 @@ static int __init ath9k_init(void)
 	error = ath_pci_init();
 	if (error < 0) {
 		printk(KERN_ERR
-			"ath_pci: No devices found, driver not installed.\n");
+			"ath9k: No PCI devices found, driver not installed.\n");
 		error = -ENODEV;
 		goto err_rate_unregister;
 	}