Revert "wireless: hostap, fix oops due to early probing interrupt"

This reverts commit 15920d8.

This patch was discovered to cause some hostap devices to fail to
initialized.

https://bugzilla.kernel.org/show_bug.cgi?id=16111

Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/hostap/hostap_hw.c

@@ -2618,15 +2618,6 @@ static irqreturn_t prism2_interrupt(int irq, void *dev_id)
 	int events = 0;
 	u16 ev;
 
-	/* Detect early interrupt before driver is fully configued */
-	if (!dev->base_addr) {
-		if (net_ratelimit()) {
-			printk(KERN_DEBUG "%s: Interrupt, but dev not configured\n",
-			       dev->name);
-		}
-		return IRQ_HANDLED;
-	}
-
 	iface = netdev_priv(dev);
 	local = iface->local;