OnSdlChoiceChosen contains duplicate class definitions

[mikeburke106]

OnSdlChoiceChosen contains class definitions that are already defined elsewhere.

For example, the class has the following definition:

public class SdlSubMenu {
    private Integer _menuID = null;
    private Integer _position = null;
    private String _menuName = null;

    // Constructor
    SdlSubMenu(Integer menuID, Integer position, String menuName) {
        _menuID = menuID;
        _position = position;
        _menuName = menuName;
    }

    // Restrict no-arg constructor
    private SdlSubMenu() {}

        // Public Getters
    public Integer getMenuID() {
        return _menuID;
    }

    public String getMenuName() {
        return _menuName;
    }

    public String toString() {
        return _menuName;
    }
}

This class contains nearly the exact same methods and variables that are already defined as part of the AddSubMenu class.

These duplicate classes should be removed in favor of the existing classes.