usb: gadget: fusb300: remove #if 0 block

The code in this block is unused and the Author is fine with removing:

| These functions were used to debug unstable hw fifo while developing
| fusb300.  It's much more stable now.
| So these functions can be removed.

Cc: "Wendy Yuan-Hsin Chen" <yhchen@faraday-tech.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/gadget/fusb300_udc.c

@@ -609,107 +609,6 @@ void fusb300_rdcxf(struct fusb300 *fusb300,
 	}
 }
 
-#if 0
-static void fusb300_dbg_fifo(struct fusb300_ep *ep,
-				u8 entry, u16 length)
-{
-	u32 reg;
-	u32 i = 0;
-	u32 j = 0;
-
-	reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_GTM);
-	reg &= ~(FUSB300_GTM_TST_EP_ENTRY(0xF) |
-		FUSB300_GTM_TST_EP_NUM(0xF) | FUSB300_GTM_TST_FIFO_DEG);
-	reg |= (FUSB300_GTM_TST_EP_ENTRY(entry) |
-		FUSB300_GTM_TST_EP_NUM(ep->epnum) | FUSB300_GTM_TST_FIFO_DEG);
-	iowrite32(reg, ep->fusb300->reg + FUSB300_OFFSET_GTM);
-
-	for (i = 0; i < (length >> 2); i++) {
-		if (i * 4 == 1024)
-			break;
-		reg = ioread32(ep->fusb300->reg +
-			FUSB300_OFFSET_BUFDBG_START + i * 4);
-		printk(KERN_DEBUG"  0x%-8x", reg);
-		j++;
-		if ((j % 4)  == 0)
-			printk(KERN_DEBUG "\n");
-	}
-
-	if (length % 4) {
-		reg = ioread32(ep->fusb300->reg +
-			FUSB300_OFFSET_BUFDBG_START + i * 4);
-		printk(KERN_DEBUG "  0x%x\n", reg);
-	}
-
-	if ((j % 4)  != 0)
-		printk(KERN_DEBUG "\n");
-
-	fusb300_disable_bit(ep->fusb300, FUSB300_OFFSET_GTM,
-		FUSB300_GTM_TST_FIFO_DEG);
-}
-
-static void fusb300_cmp_dbg_fifo(struct fusb300_ep *ep,
-				u8 entry, u16 length, u8 *golden)
-{
-	u32 reg;
-	u32 i = 0;
-	u32 golden_value;
-	u8 *tmp;
-
-	tmp = golden;
-
-	printk(KERN_DEBUG "fusb300_cmp_dbg_fifo (entry %d) : start\n", entry);
-
-	reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_GTM);
-	reg &= ~(FUSB300_GTM_TST_EP_ENTRY(0xF) |
-		FUSB300_GTM_TST_EP_NUM(0xF) | FUSB300_GTM_TST_FIFO_DEG);
-	reg |= (FUSB300_GTM_TST_EP_ENTRY(entry) |
-		FUSB300_GTM_TST_EP_NUM(ep->epnum) | FUSB300_GTM_TST_FIFO_DEG);
-	iowrite32(reg, ep->fusb300->reg + FUSB300_OFFSET_GTM);
-
-	for (i = 0; i < (length >> 2); i++) {
-		if (i * 4 == 1024)
-			break;
-		golden_value = *tmp | *(tmp + 1) << 8 |
-				*(tmp + 2) << 16 | *(tmp + 3) << 24;
-
-		reg = ioread32(ep->fusb300->reg +
-			FUSB300_OFFSET_BUFDBG_START + i*4);
-
-		if (reg != golden_value) {
-			printk(KERN_DEBUG "0x%x  :  ", (u32)(ep->fusb300->reg +
-				FUSB300_OFFSET_BUFDBG_START + i*4));
-			printk(KERN_DEBUG "    golden = 0x%x, reg = 0x%x\n",
-				golden_value, reg);
-		}
-		tmp += 4;
-	}
-
-	switch (length % 4) {
-	case 1:
-		golden_value = *tmp;
-	case 2:
-		golden_value = *tmp | *(tmp + 1) << 8;
-	case 3:
-		golden_value = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16;
-	default:
-		break;
-
-	reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_BUFDBG_START + i*4);
-	if (reg != golden_value) {
-		printk(KERN_DEBUG "0x%x:", (u32)(ep->fusb300->reg +
-			FUSB300_OFFSET_BUFDBG_START + i*4));
-		printk(KERN_DEBUG "  golden = 0x%x, reg = 0x%x\n",
-			golden_value, reg);
-	}
-	}
-
-	printk(KERN_DEBUG "fusb300_cmp_dbg_fifo : end\n");
-	fusb300_disable_bit(ep->fusb300, FUSB300_OFFSET_GTM,
-		FUSB300_GTM_TST_FIFO_DEG);
-}
-#endif
-
 static void fusb300_rdfifo(struct fusb300_ep *ep,
 			  struct fusb300_request *req,
 			  u32 length)