usb: dwc3: gadget: remove PENDING handling from cleanup_completed

We are trying to kick transfers on Isochronous endpoints in a more
controlled manner now. And this ended up rendering this piece of code
unnecessary.

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

drivers/usb/dwc3/gadget.c

@@ -2360,20 +2360,6 @@ static void dwc3_gadget_ep_cleanup_completed_requests(struct dwc3_ep *dep,
 		if (ret)
 			break;
 	}
-
-	/*
-	 * Our endpoint might get disabled by another thread during
-	 * dwc3_gadget_giveback(). If that happens, we're just gonna return 1
-	 * early.
-	 */
-	if (!dep->endpoint.desc)
-		return;
-
-	if (usb_endpoint_xfer_isoc(dep->endpoint.desc) &&
-			list_empty(&dep->started_list) &&
-			list_empty(&dep->pending_list)) {
-		dep->flags = DWC3_EP_PENDING_REQUEST;
-	}
 }
 
 static void dwc3_gadget_endpoint_frame_from_event(struct dwc3_ep *dep,