cfg80211: remove switch from __regulatory_hint()

We have complete control over REGDOM_SET_BY_* enum passed
down to __regulatory_hint() as such there is no need to
account for unexpected REGDOM_SET_BY_*'s, lets just remove
the switch statement as this code does not change and
won't change even when we add 802.11d support.

This patch has no functional changes.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

net/wireless/reg.c

@@ -698,11 +698,6 @@ int __regulatory_hint(struct wiphy *wiphy, enum reg_set_by set_by,
 	else if (r)
 		return r;
 
-	switch (set_by) {
-	case REGDOM_SET_BY_CORE:
-	case REGDOM_SET_BY_COUNTRY_IE:
-	case REGDOM_SET_BY_DRIVER:
-	case REGDOM_SET_BY_USER:
 	request = kzalloc(sizeof(struct regulatory_request),
 			  GFP_KERNEL);
 	if (!request)
@@ -717,15 +712,11 @@ int __regulatory_hint(struct wiphy *wiphy, enum reg_set_by set_by,
 	kfree(last_request);
 	last_request = request;
 	r = call_crda(alpha2);
+
 #ifndef CONFIG_WIRELESS_OLD_REGULATORY
 	if (r)
 		printk(KERN_ERR "cfg80211: Failed calling CRDA\n");
 #endif
-		break;
-	default:
-		r = -ENOTSUPP;
-		break;
-	}
 
 	return r;
 }