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

Signed-off-by: Jon Loeliger <jdl@freescale.com>
diff --git a/common/cmd_dtt.c b/common/cmd_dtt.c
index b220ecb..8da95bf 100644
--- a/common/cmd_dtt.c
+++ b/common/cmd_dtt.c
@@ -25,7 +25,7 @@
 #include <config.h>
 #include <command.h>
 
-#if (CONFIG_COMMANDS & CFG_CMD_DTT) || defined(CONFIG_CMD_DTT)
+#if defined(CONFIG_CMD_DTT)
 
 #include <dtt.h>
 #include <i2c.h>
@@ -61,4 +61,4 @@
 	  "        - Read temperature from digital thermometer and thermostat.\n"
 );
 
-#endif /* CONFIG_COMMANDS & CFG_CMD_DTT */
+#endif