usb: gadget: goku_udc: Remove unneeded condition

The removed condition is always true, since the endpoint descriptor is
set prior to calling the enable endpoint.
Signed-off-by: Ido Shayevitz <idos@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/gadget/goku_udc.c

@@ -102,7 +102,7 @@ goku_ep_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
 	unsigned long	flags;
 
 	ep = container_of(_ep, struct goku_ep, ep);
-	if (!_ep || !desc || ep->ep.desc
+	if (!_ep || !desc
 			|| desc->bDescriptorType != USB_DT_ENDPOINT)
 		return -EINVAL;
 	dev = ep->dev;