usb: dwc3: gadget: remove req->started flag

Now that we have req->status, we don't need this extra flag
anymore. It's safe to remove it.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

drivers/usb/dwc3/gadget.c

@@ -174,7 +174,6 @@ static void dwc3_gadget_del_and_unmap_request(struct dwc3_ep *dep,
 {
 	struct dwc3			*dwc = dep->dwc;
 
-	req->started = false;
 	list_del(&req->list);
 	req->remaining = 0;
 	req->needs_extra_trb = false;