UI: Updater: Remove Avalonia migration code.

src/Ryujinx/Modules/Updater/Updater.cs

@@ -1,6 +1,7 @@
 using Avalonia.Controls;
 using Avalonia.Threading;
 using FluentAvalonia.UI.Controls;
+using Gommon;
 using ICSharpCode.SharpZipLib.GZip;
 using ICSharpCode.SharpZipLib.Tar;
 using ICSharpCode.SharpZipLib.Zip;
@@ -763,47 +764,8 @@ namespace Ryujinx.Modules
 
         public static void CleanupUpdate()
         {
-            foreach (string file in Directory.GetFiles(_homeDir, "*.ryuold", SearchOption.AllDirectories))
-            {
-                File.Delete(file);
-            }
-
-            // Migration: Delete old Ryujinx binary.
-            // TODO: Remove this in a future update.
-            if (!OperatingSystem.IsMacOS())
-            {
-                string[] oldRyuFiles = Directory.GetFiles(_homeDir, "Ryujinx.Ava*", SearchOption.TopDirectoryOnly);
-                // Assume we are running the new one if the process path is not available.
-                // This helps to prevent an infinite loop of restarts.
-                string currentRyuName = Path.GetFileName(Environment.ProcessPath) ?? (OperatingSystem.IsWindows() ? "Ryujinx.exe" : "Ryujinx");
-
-                string newRyuName = Path.Combine(_homeDir, currentRyuName.Replace(".Ava", ""));
-                if (!currentRyuName.Contains("Ryujinx.Ava"))
-                {
-                    foreach (string oldRyuFile in oldRyuFiles)
-                    {
-                        File.Delete(oldRyuFile);
-                    }
-                }
-                // Should we be running the old binary, start the new one if possible.
-                else if (File.Exists(newRyuName))
-                {
-                    ProcessStartInfo processStart = new(newRyuName)
-                    {
-                        UseShellExecute = true,
-                        WorkingDirectory = _homeDir,
-                    };
-
-                    foreach (string argument in CommandLineState.Arguments)
-                    {
-                        processStart.ArgumentList.Add(argument);
-                    }
-
-                    Process.Start(processStart);
-
-                    Environment.Exit(0);
-                }
-            }
+            Directory.GetFiles(_homeDir, "*.ryuold", SearchOption.AllDirectories)
+                .ForEach(File.Delete);
         }
     }
 }