disk/: Remove obsolete references to CONFIG_COMMANDS

Signed-off-by: Jon Loeliger <jdl@freescale.com>
diff --git a/disk/part_amiga.c b/disk/part_amiga.c
index d55249f..6c3d748 100644
--- a/disk/part_amiga.c
+++ b/disk/part_amiga.c
@@ -26,9 +26,9 @@
 #include <ide.h>
 #include "part_amiga.h"
 
-#if ((CONFIG_COMMANDS & CFG_CMD_IDE)	 || defined(CONFIG_CMD_IDE) || \
-     (CONFIG_COMMANDS & CFG_CMD_SCSI)	 || defined(CONFIG_CMD_SCSI) || \
-     (CONFIG_COMMANDS & CFG_CMD_USB)	 || defined(CONFIG_CMD_USB) || \
+#if (defined(CONFIG_CMD_IDE) || \
+     defined(CONFIG_CMD_SCSI) || \
+     defined(CONFIG_CMD_USB) || \
      defined(CONFIG_MMC) || \
      defined(CONFIG_SYSTEMACE) ) && defined(CONFIG_AMIGA_PARTITION)