ata: ahci_mvebu: a8040 a0: remove bad port register offsets workarounds

This workaround was added for A8040/7040 A0.
A8040/7040 A0 is no longer supported so this workaround
can be removed.

Signed-off-by: David Sniatkiwicz <davidsn@marvell.com>
Signed-off-by: Ken Ma <make@marvell.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Stefan Roese <sr@denx.de>

drivers/ata/ahci_mvebu.c

@@ -16,14 +16,6 @@ __weak int board_ahci_enable(void)
 	return 0;
 }
 
-#ifdef CONFIG_ARMADA_8K
-/* CP110 has different AHCI port addresses */
-void __iomem *ahci_port_base(void __iomem *base, u32 port)
-{
-	return base + 0x10000 + (port * 0x10000);
-}
-#endif
-
 static int mvebu_ahci_probe(struct udevice *dev)
 {
 	/*