rtc: Clean drivers/rtc/Makefile

Signed-off-by: Michal Simek <monstr@monstr.eu>
diff --git a/drivers/rtc/ds1302.c b/drivers/rtc/ds1302.c
index e4e9154..d28a9fd 100644
--- a/drivers/rtc/ds1302.c
+++ b/drivers/rtc/ds1302.c
@@ -9,7 +9,7 @@
 #include <command.h>
 #include <rtc.h>
 
-#if defined(CONFIG_RTC_DS1302) && defined(CONFIG_CMD_DATE)
+#if defined(CONFIG_CMD_DATE)
 
 /* GPP Pins */
 #define DATA		0x200