common/cmd_[af]*: Remove obsolete references to CONFIG_COMMANDS.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
diff --git a/common/cmd_fat.c b/common/cmd_fat.c
index f7e6c86..0f0ff4a 100644
--- a/common/cmd_fat.c
+++ b/common/cmd_fat.c
@@ -31,7 +31,7 @@
 #include <ata.h>
 #include <part.h>
 
-#if (CONFIG_COMMANDS & CFG_CMD_FAT) || defined(CONFIG_CMD_FAT)
+#if defined(CONFIG_CMD_FAT)
 
 #undef	DEBUG