remove ioremap_nocache and devm_ioremap_nocache

ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>

drivers/usb/early/xhci-dbc.c

@@ -971,7 +971,7 @@ static int __init xdbc_init(void)
 		goto free_and_quit;
 	}
 
-	base = ioremap_nocache(xdbc.xhci_start, xdbc.xhci_length);
+	base = ioremap(xdbc.xhci_start, xdbc.xhci_length);
 	if (!base) {
 		xdbc_trace("failed to remap the io address\n");
 		ret = -ENOMEM;