remove IImageFrame interface

src/ImageSharp/Image/IImageFrame.cs

@@ -1,32 +0,0 @@
-// Copyright (c) Six Labors and contributors.
-// Licensed under the Apache License, Version 2.0.
-
-using System;
-using SixLabors.ImageSharp.Advanced;
-using SixLabors.ImageSharp.Memory;
-using SixLabors.ImageSharp.MetaData;
-using SixLabors.ImageSharp.PixelFormats;
-
-namespace SixLabors.ImageSharp
-{
-    /// <summary>
-    /// Encapsulates the basic properties and methods required to manipulate images.
-    /// </summary>
-    public interface IImageFrame : IDisposable
-    {
-        /// <summary>
-        /// Gets the meta data of the image.
-        /// </summary>
-        ImageFrameMetaData MetaData { get; }
-
-        /// <summary>
-        /// Gets the width.
-        /// </summary>
-        int Width { get; }
-
-        /// <summary>
-        /// Gets the height.
-        /// </summary>
-        int Height { get; }
-    }
-}

src/ImageSharp/Image/ImageFrame{TPixel}.cs

@@ -17,7 +17,7 @@ namespace SixLabors.ImageSharp
     /// Represents a single frame in a animation.
     /// </summary>
     /// <typeparam name="TPixel">The pixel format.</typeparam>
-    public sealed class ImageFrame<TPixel> : IImageFrame, IPixelSource<TPixel>
+    public sealed class ImageFrame<TPixel> : IPixelSource<TPixel>, IDisposable
         where TPixel : struct, IPixel<TPixel>
     {
         /// <summary>
@@ -67,10 +67,14 @@ namespace SixLabors.ImageSharp
         /// <inheritdoc/>
         Buffer2D<TPixel> IPixelSource<TPixel>.PixelBuffer => this.pixelBuffer;
 
-        /// <inheritdoc/>
+        /// <summary>
+        /// Gets the width.
+        /// </summary>
         public int Width => this.pixelBuffer.Width;
 
-        /// <inheritdoc/>
+        /// <summary>
+        /// Gets the height.
+        /// </summary>
         public int Height => this.pixelBuffer.Height;
 
         /// <summary>