Move `SDL_Keycode` typdef to global python script to avoid duplicate definition

SDL3-CS/SDL3/SDL_keycode.cs

@@ -1,10 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-using System;
-
-namespace SDL
-{
-    [Typedef]
-    public enum SDL_Keycode : Int32;
-}

SDL3-CS/generate_bindings.py

@@ -216,6 +216,7 @@ base_command = [
     "void*=IntPtr",
     "char=byte",
     "wchar_t *=IntPtr",  # wchar_t has a platform-defined size
+    typedef("SDL_Keycode"),
 
     "--define-macro",
     "SDL_FUNCTION_POINTER_IS_VOID_POINTER",