removed forgotten code

model/src/main/java/lcsb/mapviewer/model/Project.java

@@ -119,11 +119,6 @@ public class Project implements Serializable {
     this.projectId = projectId;
   }
 
-  @PostRemove
-  public void remove() {
-
-  }
-
   public void addModel(ModelData model) {
     models.add(model);
     model.setProject(this);