sunxi: usb: Remove sunxi_usbc_get_io_base function

This is the only function left in sunxi/usbc.c which is not phy related,
so remove it.

This is a preparation patch for turning the usbc.c code into a proper
usb phy driver.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/drivers/usb/host/ehci-sunxi.c b/drivers/usb/host/ehci-sunxi.c
index 41e4d7f..5de20f9 100644
--- a/drivers/usb/host/ehci-sunxi.c
+++ b/drivers/usb/host/ehci-sunxi.c
@@ -35,7 +35,10 @@
 	sunxi_usbc_enable(index + 1);
 	sunxi_usbc_vbus_enable(index + 1);
 
-	*hccr = sunxi_usbc_get_io_base(index + 1);
+	if (index == 0)
+		*hccr = (void *)SUNXI_USB1_BASE;
+	else
+		*hccr = (void *)SUNXI_USB2_BASE;
 
 	*hcor = (struct ehci_hcor *)((uint32_t) *hccr
 				+ HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));