Delete BoolEvent.cs

-//-----------------------------------------------------------------------
-// <copyright file="BoolEvent.cs" company="Google Inc.">
-// Copyright 2016 Google Inc. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// </copyright>
-//-----------------------------------------------------------------------
-
-namespace GoogleVR.VideoDemo
-{
-    using System;
-    using UnityEngine;
-    using UnityEngine.Events;
-
-    /// <summary>A `UnityEvent` wrapper for boolean events.</summary>
-    [Serializable]
-    public class BoolEvent : UnityEvent<bool>
-    {
-    }
-}