delete line 27 in clock.c, function rt_timer_switch() not used in clock.c line 27 extern void rt_timer_switch(void);
delete line 27 in clock.c, function rt_timer_switch() not used in clock.c
line 27 extern void rt_timer_switch(void);

git-svn-id: 839522a79b1d56a78fa446d2fd3a0c499f8e535e@1857 bbd45198-f89e-11dd-88c7-29a3b14d5316

nongxiaoming/rt-thread,geniusgogo/rt-thread,igou/rt-thread,hezlog/rt-thread,hezlog/rt-thread,geniusgogo/rt-thread,igou/rt-thread,armink/rt-thread,zhaojuntao/rt-thread,zhaojuntao/rt-thread,ArdaFu/rt-thread,weety/rt-thread,hezlog/rt-thread,nongxiaoming/rt-thread,AubrCool/rt-thread,geniusgogo/rt-thread,FlyLu/rt-thread,weety/rt-thread,gbcwbz/rt-thread,AubrCool/rt-thread,FlyLu/rt-thread,yongli3/rt-thread,weiyuliang/rt-thread,gbcwbz/rt-thread,ArdaFu/rt-thread,armink/rt-thread,weety/rt-thread,yongli3/rt-thread,wolfgangz2013/rt-thread,nongxiaoming/rt-thread,igou/rt-thread,yongli3/rt-thread,ArdaFu/rt-thread,FlyLu/rt-thread,ArdaFu/rt-thread,yongli3/rt-thread,wolfgangz2013/rt-thread,armink/rt-thread,weety/rt-thread,weiyuliang/rt-thread,gbcwbz/rt-thread,weety/rt-thread,ArdaFu/rt-thread,nongxiaoming/rt-thread,yongli3/rt-thread,armink/rt-thread,AubrCool/rt-thread,hezlog/rt-thread,gbcwbz/rt-thread,FlyLu/rt-thread,wolfgangz2013/rt-thread,FlyLu/rt-thread,wolfgangz2013/rt-thread,weiyuliang/rt-thread,ArdaFu/rt-thread,igou/rt-thread,hezlog/rt-thread,weiyuliang/rt-thread,hezlog/rt-thread,igou/rt-thread,AubrCool/rt-thread,RT-Thread/rt-thread,RT-Thread/rt-thread,wolfgangz2013/rt-thread,igou/rt-thread,weiyuliang/rt-thread,hezlog/rt-thread,RT-Thread/rt-thread,AubrCool/rt-thread,weiyuliang/rt-thread,AubrCool/rt-thread,RT-Thread/rt-thread,zhaojuntao/rt-thread,weety/rt-thread,RT-Thread/rt-thread,FlyLu/rt-thread,RT-Thread/rt-thread,nongxiaoming/rt-thread,wolfgangz2013/rt-thread,weety/rt-thread,yongli3/rt-thread,ArdaFu/rt-thread,armink/rt-thread,weiyuliang/rt-thread,armink/rt-thread,geniusgogo/rt-thread,igou/rt-thread,zhaojuntao/rt-thread,gbcwbz/rt-thread,AubrCool/rt-thread,FlyLu/rt-thread,geniusgogo/rt-thread,zhaojuntao/rt-thread,armink/rt-thread,geniusgogo/rt-thread,zhaojuntao/rt-thread,gbcwbz/rt-thread,nongxiaoming/rt-thread,geniusgogo/rt-thread,RT-Thread/rt-thread,wolfgangz2013/rt-thread,yongli3/rt-thread,nongxiaoming/rt-thread,zhaojuntao/rt-thread,gbcwbz/rt-thread