Revert "nvidia/ck804: Add ability to override CK804 base unit ID"

This reverts commit b871687991.

Use of #ifndef here makes it error-prone and hides errors.

Change-Id: I13a999250c80adedb6b3fd4963a862ff106750f0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8338
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>

src/southbridge/nvidia/ck804/enable_usbdebug.c

@@ -5,7 +5,6 @@
  * Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer.
  * Copyright (C) 2006,2007 AMD
  * Written by Yinghai Lu <yinghai.lu@amd.com> for AMD.
- * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -31,13 +30,11 @@
 #include <device/pci_def.h>
 #include "ck804.h"
 
-#ifndef CK804_DEVN_BASE
 #if CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20
 #define CK804_DEVN_BASE CONFIG_HT_CHAIN_END_UNITID_BASE
 #else
 #define CK804_DEVN_BASE CONFIG_HT_CHAIN_UNITID_BASE
 #endif
-#endif
 
 pci_devfn_t pci_ehci_dbg_dev(unsigned int hcd_idx)
 {