Copter: removed HomeState from defines.h

now in AP_Common.h

ArduCopter/defines.h

@@ -171,13 +171,6 @@
 #define WP_YAW_BEHAVIOR_LOOK_AT_NEXT_WP_EXCEPT_RTL    2   // auto pilot will face next waypoint except when doing RTL at which time it will stay in it's last
 #define WP_YAW_BEHAVIOR_LOOK_AHEAD                    3   // auto pilot will look ahead during missions and rtl (primarily meant for traditional helicotpers)
 
-// home states (held in ap.home_state flags)
-enum HomeState {
-    HOME_UNSET,                 // home is unset, no GPS positions yet received
-    HOME_SET_NOT_LOCKED,        // home is set to EKF origin or armed location (can be moved)
-    HOME_SET_AND_LOCKED         // home has been set by user, cannot be moved except by user initiated do-set-home command
-};
-
 // Auto modes
 enum AutoMode {
     Auto_TakeOff,