usb: dwc3: gadget: remove unnecessary 'ioc' variable

It's only written to, never read. We can remove it now.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

drivers/usb/dwc3/gadget.c

@@ -2312,7 +2312,6 @@ static void dwc3_gadget_ep_cleanup_completed_requests(struct dwc3_ep *dep,
 {
 	struct dwc3_request	*req, *n;
 	struct dwc3_trb		*trb;
-	bool			ioc = false;
 	int			ret = 0;
 
 	list_for_each_entry_safe(req, n, &dep->started_list, list) {
@@ -2375,13 +2374,9 @@ static void dwc3_gadget_ep_cleanup_completed_requests(struct dwc3_ep *dep,
 
 		dwc3_gadget_giveback(dep, req, status);
 
-		if (ret) {
-			if ((event->status & DEPEVT_STATUS_IOC) &&
-			    (trb->ctrl & DWC3_TRB_CTRL_IOC))
-				ioc = true;
+		if (ret)
 			break;
 	}
-	}
 
 	/*
 	 * Our endpoint might get disabled by another thread during