usb: gadget: fusb300_udc: drop dead code

that code has been dead forever. Since the
first commit (0fe6f1d1) the use of that code
has been commented out. Let's drop the dead
code already and fix the following compile
warning:

| drivers/usb/gadget/fusb300_udc.c: At top level:
| drivers/usb/gadget/fusb300_udc.c:771:13: warning: ‘fusb300_wrfifo’ defined but not used [-Wunused-function]
| drivers/usb/gadget/fusb300_udc.c:1027:13: warning: ‘fusb300_set_ep_bycnt’ defined but not used [-Wunused-function]
Signed-off-by: NFelipe Balbi <balbi@ti.com>

drivers/usb/gadget/fusb300_udc.c

@@ -767,56 +767,6 @@ static void fusb300_rdfifo(struct fusb300_ep *ep,
 	} while (!reg);
 }
 
-/* write data to fifo */
-static void fusb300_wrfifo(struct fusb300_ep *ep,
-			   struct fusb300_request *req)
-{
-	int i = 0;
-	u8 *tmp;
-	u32 data, reg;
-	struct fusb300 *fusb300 = ep->fusb300;
-
-	tmp = req->req.buf;
-	req->req.actual = req->req.length;
-
-	for (i = (req->req.length >> 2); i > 0; i--) {
-		data = *tmp | *(tmp + 1) << 8 |
-			*(tmp + 2) << 16 | *(tmp + 3) << 24;
-
-		iowrite32(data, fusb300->reg +
-			FUSB300_OFFSET_EPPORT(ep->epnum));
-		tmp += 4;
-	}
-
-	switch (req->req.length % 4) {
-	case 1:
-		data = *tmp;
-		iowrite32(data, fusb300->reg +
-			FUSB300_OFFSET_EPPORT(ep->epnum));
-		break;
-	case 2:
-		data = *tmp | *(tmp + 1) << 8;
-		iowrite32(data, fusb300->reg +
-			FUSB300_OFFSET_EPPORT(ep->epnum));
-		break;
-	case 3:
-		data = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16;
-		iowrite32(data, fusb300->reg +
-			FUSB300_OFFSET_EPPORT(ep->epnum));
-		break;
-	default:
-		break;
-	}
-
-	do {
-		reg = ioread32(fusb300->reg + FUSB300_OFFSET_IGR1);
-		reg &= FUSB300_IGR1_SYNF0_EMPTY_INT;
-		if (i)
-			printk(KERN_INFO"sync fifo is not empty!\n");
-		i++;
-	} while (!reg);
-}
-
 static u8 fusb300_get_epnstall(struct fusb300 *fusb300, u8 ep)
 {
 	u8 value;
@@ -1024,17 +974,6 @@ static int setup_packet(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl)
 	return ret;
 }
 
-static void fusb300_set_ep_bycnt(struct fusb300_ep *ep, u32 bycnt)
-{
-	struct fusb300 *fusb300 = ep->fusb300;
-	u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPFFR(ep->epnum));
-
-	reg &= ~FUSB300_FFR_BYCNT;
-	reg |= bycnt & FUSB300_FFR_BYCNT;
-
-	iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPFFR(ep->epnum));
-}
-
 static void done(struct fusb300_ep *ep, struct fusb300_request *req,
 		 int status)
 {
@@ -1143,14 +1082,8 @@ static void in_ep_fifo_handler(struct fusb300_ep *ep)
 	struct fusb300_request *req = list_entry(ep->queue.next,
 					struct fusb300_request, queue);
 
-	if (req->req.length) {
-#if 0
-		fusb300_set_ep_bycnt(ep, req->req.length);
-		fusb300_wrfifo(ep, req);
-#else
+	if (req->req.length)
 		fusb300_set_idma(ep, req);
-#endif
-	}
 	done(ep, req, 0);
 }