SDL: cmake: remove reference to unused MFI_JOYSTICK_SOURCES

SDL Commits
1 
From 1af6f92a71e00c557247bd53bb07c814bf48d537 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Sun, 20 Sep 2026 20:25:04 +0200
Subject: [PATCH] cmake: remove reference to unused MFI_JOYSTICK_SOURCES

---
 CMakeLists.txt | 1 -
 1 file changed, 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d0095516e16ac..5429cb84d4f76 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2838,7 +2838,6 @@ elseif(APPLE)
         "${SDL3_SOURCE_DIR}/src/joystick/darwin/*.c"
         "${SDL3_SOURCE_DIR}/src/joystick/darwin/*.h"
       )
-      set_property(SOURCE ${MFI_JOYSTICK_SOURCES} APPEND_STRING PROPERTY COMPILE_FLAGS " -fobjc-weak")
       check_objc_source_compiles("
           #include <AvailabilityMacros.h>
           #include <TargetConditionals.h>