revert unrelated changes

Core/src/org/sleuthkit/autopsy/timeline/datamodel/eventtype/EventType.java

@@ -32,7 +32,7 @@ import org.sleuthkit.autopsy.timeline.zooming.EventTypeZoomLevel;
  */
 public interface EventType {
 
-    final static List<EventType> allTypes = RootEventType.getInstance().getSubTypesRecusive();
+    final static List<? extends EventType> allTypes = RootEventType.getInstance().getSubTypesRecusive();
 
     static Comparator<EventType> getComparator() {
         return Comparator.comparing(EventType.allTypes::indexOf);
@@ -47,7 +47,7 @@ public interface EventType {
         }
     }
 
-    default List<EventType> getSubTypesRecusive() {
+    default List<? extends EventType> getSubTypesRecusive() {
         ArrayList<EventType> flatList = new ArrayList<>();
 
         for (EventType et : getSubTypes()) {
@@ -56,8 +56,6 @@ public interface EventType {
         }
         return flatList;
     }
-    
-    
 
     /**
      * @return the color used to represent this event type visually

Core/src/org/sleuthkit/autopsy/timeline/ui/AbstractTimeLineView.java

@@ -100,9 +100,6 @@ public abstract class AbstractTimeLineView extends BorderPane {
     public void handleRefreshRequested(RefreshRequestedEvent event) {
         refresh();
     }
- 
-    
-   
 
     /**
      * Does the view represent an out-of-date state of the DB. It might if, for