SDL: SDL_mfijoystick.m: Fix -Wshadow warning

SDL Commits
1 
From b99510836e8961369c4dfd08f7c905c4b9f9c55e Mon Sep 17 00:00:00 2001
From: Cameron Gutman <[EMAIL REDACTED]>
Date: Wed, 24 Nov 2021 13:04:50 -0600
Subject: [PATCH] SDL_mfijoystick.m: Fix -Wshadow warning

---
 src/joystick/iphoneos/SDL_mfijoystick.m | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/joystick/iphoneos/SDL_mfijoystick.m b/src/joystick/iphoneos/SDL_mfijoystick.m
index 605651f573..3508736e6e 100644
--- a/src/joystick/iphoneos/SDL_mfijoystick.m
+++ b/src/joystick/iphoneos/SDL_mfijoystick.m
@@ -1473,7 +1473,6 @@ -(void)cleanup
 
 #ifdef ENABLE_MFI_SYSTEM_GESTURE_STATE
             if (@available(macOS 11.0, iOS 14.0, tvOS 14.0, *)) {
-                GCController *controller = joystick->hwdata->controller;
                 for (id key in controller.physicalInputProfile.buttons) {
                     GCControllerButtonInput *button = controller.physicalInputProfile.buttons[key];
                     if ([button isBoundToSystemGesture]) {