Fix duplicate app icon resizing (#30920)

Possibly helps with #30900

Author: jeremy-visionaid

src/SingleProject/Resizetizer/src/ResizetizeImages.cs

@@ -227,7 +227,6 @@ void ProcessAppIcon(ResizeImageInfo img, ConcurrentBag<ResizedImageInfo> resized
 					continue;
 				}
 
-				appTool.Resize(dpi, destination);
 				var r = appTool.Resize(dpi, destination);
 				resizedImages.Add(r);
 			}

src/SingleProject/Resizetizer/src/SkiaSharpAppIconTools.cs

@@ -35,7 +35,7 @@ public SkiaSharpAppIconTools(ResizeImageInfo info, ILogger? logger)
 
 		public string AppIconName { get; }
 
-		public ResizedImageInfo Resize(DpiPath dpi, string destination, Func<Stream>? getStream = null)
+		public ResizedImageInfo Resize(DpiPath dpi, string destination, Stream? stream = null)
 		{
 			var sw = new Stopwatch();
 			sw.Start();
@@ -51,7 +51,7 @@ public ResizedImageInfo Resize(DpiPath dpi, string destination, Func<Stream>? ge
 			using (var tempBitmap = new SKBitmap(canvasSize.Width, canvasSize.Height))
 			{
 				Draw(tempBitmap, dpi, unscaledCanvasSize);
-				Save(tempBitmap, destination, getStream);
+				Save(tempBitmap, destination, stream);
 			}
 
 			sw.Stop();
@@ -60,11 +60,10 @@ public ResizedImageInfo Resize(DpiPath dpi, string destination, Func<Stream>? ge
 			return new ResizedImageInfo { Dpi = dpi, Filename = destination };
 		}
 
-		void Save(SKBitmap tempBitmap, string destination, Func<Stream>? getStream)
+		void Save(SKBitmap tempBitmap, string destination, Stream? stream)
 		{
-			if (getStream is not null)
+			if (stream is not null)
 			{
-				var stream = getStream();
 				tempBitmap.Encode(stream, SKEncodedImageFormat.Png, 100);
 			}
 			else

src/SingleProject/Resizetizer/src/WindowsIconGenerator.cs

@@ -42,8 +42,8 @@ public ResizedImageInfo Generate()
 				return new ResizedImageInfo { Dpi = dpi, Filename = destination };
 			}
 
-			MemoryStream memoryStream = new MemoryStream();
-			tools.Resize(dpi, destination, () => memoryStream);
+			using MemoryStream memoryStream = new MemoryStream();
+			tools.Resize(dpi, destination, memoryStream);
 			memoryStream.Position = 0;
 
 			int numberOfImages = 1;