* BIG refactor: 'board' and 'radio' objects now defined in 'target.h/.cpp'

* mesh::RTCClock class moved to MeshCore.h

src/Mesh.h

@@ -4,34 +4,6 @@
 
 namespace mesh {
 
-/**
- * An abstraction of the device's Realtime Clock.
-*/
-class RTCClock {
-  uint32_t last_unique;
-protected:
-  RTCClock() { last_unique = 0; }
-
-public:
-  /**
-   * \returns  the current time. in UNIX epoch seconds.
-  */
-  virtual uint32_t getCurrentTime() = 0;
-
-  /**
-   * \param time  current time in UNIX epoch seconds.
-  */
-  virtual void setCurrentTime(uint32_t time) = 0;
-
-  uint32_t getCurrentTimeUnique() {
-    uint32_t t = getCurrentTime();
-    if (t <= last_unique) {
-      return ++last_unique;
-    }
-    return last_unique = t;
-  }
-};
-
 class GroupChannel {
 public:
   uint8_t hash[PATH_HASH_SIZE];