USB: ehci-hub: Remove redundant ehci->debug check

No need to check ehci->debug twice.

Found-by: Sergei Shtylyov sshtylyov@ru.mvista.com
Signed-off-by: NJason Wessel <jason.wessel@windriver.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/host/ehci-hub.c

@@ -236,7 +236,7 @@ static int ehci_bus_resume (struct usb_hcd *hcd)
 	}
 
 	if (unlikely(ehci->debug)) {
-		if (ehci->debug && !dbgp_reset_prep())
+		if (!dbgp_reset_prep())
 			ehci->debug = NULL;
 		else
 			dbgp_external_startup();