[mono] Remove support for Classic Xamarin for the Selector.GetHandle …

…optimization, and add newer platforms. (#61989)

We haven't supported Classic mode for Xamarin for quite a few years now
(monotouch, MonoMac), so that code is not needed anymore. However, we've added
support for more platforms (tvOS, Mac Catalyst), so add support for those.

src/mono/mono/mini/intrinsics.c

@@ -1921,11 +1921,9 @@ mini_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSign
 			}
 		}
 		return NULL;
-	} else if (((!strcmp (cmethod_klass_image->assembly->aname.name, "MonoMac") ||
-	            !strcmp (cmethod_klass_image->assembly->aname.name, "monotouch")) &&
-				!strcmp (cmethod_klass_name_space, "XamCore.ObjCRuntime") &&
-				!strcmp (cmethod_klass_name, "Selector")) ||
-			   ((!strcmp (cmethod_klass_image->assembly->aname.name, "Xamarin.iOS") ||
+	} else if (((!strcmp (cmethod_klass_image->assembly->aname.name, "Xamarin.iOS") ||
+				 !strcmp (cmethod_klass_image->assembly->aname.name, "Xamarin.TVOS") ||
+				 !strcmp (cmethod_klass_image->assembly->aname.name, "Xamarin.MacCatalyst") ||
 				 !strcmp (cmethod_klass_image->assembly->aname.name, "Xamarin.Mac")) &&
 				!strcmp (cmethod_klass_name_space, "ObjCRuntime") &&
 				!strcmp (cmethod_klass_name, "Selector"))