Cleanup of the ContikiMAC code; removed the old an unused announcement code

core/net/mac/contikimac.h

@@ -33,13 +33,13 @@
 
 /**
  * \file
- *         The Contiki power-saving MAC protocol (ContikiMAC)
+ *         Header file for the ContikiMAC radio duty cycling protocol
  * \author
  *         Adam Dunkels <adam@sics.se>
  */
 
-#ifndef __CONTIKIMAC_H__
-#define __CONTIKIMAC_H__
+#ifndef CONTIKIMAC_H
+#define CONTIKIMAC_H
 
 #include "sys/rtimer.h"
 #include "net/mac/rdc.h"
@@ -47,4 +47,4 @@
 
 extern const struct rdc_driver contikimac_driver;
 
-#endif /* __CONTIKIMAC_H__ */
+#endif /* CONTIKIMAC_H */