Don't build this project for Apple driverkit

Author: slouken

Xcode/SDL_mixer.xcodeproj/project.pbxproj

@@ -662,7 +662,7 @@
 				MARKETING_VERSION = 3.0.0;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.libsdl.SDL3-mixer";
 				PRODUCT_NAME = SDL3_mixer;
-				SUPPORTED_PLATFORMS = "xrsimulator xros macosx iphonesimulator iphoneos driverkit appletvsimulator appletvos";
+				SUPPORTED_PLATFORMS = "xrsimulator xros macosx iphonesimulator iphoneos appletvsimulator appletvos";
 				SUPPORTS_MACCATALYST = YES;
 				TVOS_DEPLOYMENT_TARGET = 11.0;
 				XROS_DEPLOYMENT_TARGET = 1.3;
@@ -713,7 +713,7 @@
 				ONLY_ACTIVE_ARCH = YES;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.libsdl.SDL3-mixer";
 				PRODUCT_NAME = SDL3_mixer;
-				SUPPORTED_PLATFORMS = "xrsimulator xros macosx iphonesimulator iphoneos driverkit appletvsimulator appletvos";
+				SUPPORTED_PLATFORMS = "xrsimulator xros macosx iphonesimulator iphoneos appletvsimulator appletvos";
 				SUPPORTS_MACCATALYST = YES;
 				TVOS_DEPLOYMENT_TARGET = 11.0;
 				XROS_DEPLOYMENT_TARGET = 1.3;