SDL: Fixed build warning

SDL Commits
1 
From eb046958da719ad8c142cc96eda2c244e5b2522e Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Fri, 16 Sep 2022 08:19:45 -0700
Subject: [PATCH] Fixed build warning

---
 src/joystick/darwin/SDL_iokitjoystick.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/joystick/darwin/SDL_iokitjoystick.c b/src/joystick/darwin/SDL_iokitjoystick.c
index 40d8a38cbf0..de43c97f35c 100644
--- a/src/joystick/darwin/SDL_iokitjoystick.c
+++ b/src/joystick/darwin/SDL_iokitjoystick.c
@@ -430,7 +430,6 @@ GetDeviceInfo(IOHIDDeviceRef hidDevice, recDevice *pDevice)
     char product_string[256];
     CFTypeRef refCF = NULL;
     CFArrayRef array = NULL;
-    Uint16 *guid16 = (Uint16 *)pDevice->guid.data;
 
     /* get usage page and usage */
     refCF = IOHIDDeviceGetProperty(hidDevice, CFSTR(kIOHIDPrimaryUsagePageKey));