usb: dwc2: gadget: remove unused members from hsotg_req

These members are only occupying space.
Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/dwc2/core.h

@@ -158,14 +158,10 @@ struct s3c_hsotg_ep {
  * struct s3c_hsotg_req - data transfer request
  * @req: The USB gadget request
  * @queue: The list of requests for the endpoint this is queued for.
- * @in_progress: Has already had size/packets written to core
- * @mapped: DMA buffer for this request has been mapped via dma_map_single().
  */
 struct s3c_hsotg_req {
 	struct usb_request      req;
 	struct list_head        queue;
-	unsigned char           in_progress;
-	unsigned char           mapped;
 };
 
 #if IS_ENABLED(CONFIG_USB_DWC2_PERIPHERAL) || IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE)