update for scons command build.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@217 bbd45198-f89e-11dd-88c7-29a3b14d5316

bsp/stm3210/rtconfig.h

@@ -25,7 +25,7 @@
 #define RT_USING_HOOK
 
 /* Using Software Timer */
-#define RT_USING_TIMER_SOFT
+/* #define RT_USING_TIMER_SOFT */
 #define RT_TIMER_THREAD_PRIO		4
 #define RT_TIMER_THREAD_STACK_SIZE	512
 #define RT_TIMER_TICK_PER_SECOND	10