Updated for stage-3

Fork of Task613Solution-mbeds54 by Nicholas Outram

Revision:
2:3d65cd8d7089
Parent:
1:948bd552a2a2
Child:
3:ef46c1ddefed
--- a/main.cpp	Thu Mar 30 13:58:19 2017 +0000
+++ b/main.cpp	Thu Mar 30 15:01:54 2017 +0100
@@ -1,5 +1,4 @@
 #include "mbed.h"
-#include "rtos.h"
 
 #define RED_OFF    1
 #define YELLOW_OFF 2