revert space fix (Avalonia fixed this bug)

ILSpy.Core/MainWindow.xaml.cs

@@ -1123,8 +1123,7 @@ namespace ICSharpCode.ILSpy
 		async void LoadAssemblies(IEnumerable<string> fileNames, List<LoadedAssembly> loadedAssemblies = null, bool focusNode = true)
 		{
 			SharpTreeNode lastNode = null;
-			foreach (string name in fileNames) {
-                string file = Uri.UnescapeDataString(name);
+			foreach (string file in fileNames) {
 				switch (Path.GetExtension(file)) {
 					case ".nupkg":
                         this.handlingNugetPackageSelection = true;