Do not redefine USE_TIMERS which is already defined in civetweb.c
Do not redefine USE_TIMERS which is already defined in civetweb.c

GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver