rtc/: Remove obsolete references to CONFIG_COMMANDS

Signed-off-by: Jon Loeliger <jdl@freescale.com>
diff --git a/rtc/ds1307.c b/rtc/ds1307.c
index 79201a1..a2a8633 100644
--- a/rtc/ds1307.c
+++ b/rtc/ds1307.c
@@ -36,7 +36,7 @@
 #include <i2c.h>
 
 #if (defined(CONFIG_RTC_DS1307) || defined(CONFIG_RTC_DS1338) ) && \
-    ((CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_CMD_DATE))
+    defined(CONFIG_CMD_DATE)
 
 /*---------------------------------------------------------------------*/
 #undef DEBUG_RTC