add the functionality to erase the list of Waypoint widget (WaypointView) from...

add the functionality to erase the list of Waypoint widget (WaypointView) from the button of the WaypointList widget

src/ui/WaypointList.cc

@@ -360,18 +360,20 @@ void WaypointList::on_clearWPListButton_clicked()
 {
     emit clearPathclicked();
 
-//    if (uas)
-//    {
-//        const QVector<Waypoint *> &waypoints = uas->getWaypointManager().getWaypointList();
-//            for(int i = 0; i <=waypoints.size(); i++)
-//            {
-//                WaypointView* widget = wpViews.find(waypoints[i]).value();
+    if (uas)
+    {
+        const QVector<Waypoint *> &waypoints = uas->getWaypointManager().getWaypointList();
+            while(!waypoints.isEmpty())//for(int i = 0; i <= waypoints.size(); i++)
+            {
+                //Waypoint *temp = waypoints[i];
 
-//                widget->remove();
+                WaypointView* widget = wpViews.find(waypoints[0]).value();
 
-//            }
+                widget->remove();
 
-//    }
+            }
+
+    }
 }
 
 /** @brief Add a waypoint by mouse click over the map */