Exclude `SDL_main()` from DllImport as it isn't exported by SDL3.dll

SDL3-CS/SDL3/ClangSharp/SDL_main.Windows.g.cs

@@ -41,8 +41,5 @@ namespace SDL
         [DllImport("SDL3", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
         [SupportedOSPlatform("Windows")]
         public static extern void SDL_GDKSuspendComplete();
-
-        [NativeTypeName("#define main SDL_main")]
-        public static readonly delegate*<int, sbyte**, int> main = &SDL_main;
     }
 }

SDL3-CS/SDL3/ClangSharp/SDL_main.g.cs

@@ -29,9 +29,6 @@ namespace SDL
 {
     public static unsafe partial class SDL3
     {
-        [DllImport("SDL3", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
-        public static extern int SDL_main(int argc, [NativeTypeName("char *[]")] sbyte** argv);
-
         [DllImport("SDL3", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
         public static extern void SDL_SetMainReady();
 

SDL3-CS/SDL3/SDL_main.rsp

@@ -0,0 +1,7 @@
+# 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.
+
+# Exclude definition that are only useful when building C applications.
+--exclude
+SDL_main
+main