SDL: X11: remove redundant 'wakeup_lock' mutex creation

SDL Commits
1 
From 649a33ae47d90ae4d93adcb2cecee27751c663c3 Mon Sep 17 00:00:00 2001
From: Sylvain <[EMAIL REDACTED]>
Date: Mon, 18 Oct 2021 23:00:43 +0200
Subject: [PATCH] X11: remove redundant 'wakeup_lock' mutex creation

---
 src/video/x11/SDL_x11video.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/video/x11/SDL_x11video.c b/src/video/x11/SDL_x11video.c
index f1d10410a7..eb3ecc3299 100644
--- a/src/video/x11/SDL_x11video.c
+++ b/src/video/x11/SDL_x11video.c
@@ -184,7 +184,6 @@ X11_CreateDevice(int devindex)
         return NULL;
     }
     device->driverdata = data;
-    device->wakeup_lock = SDL_CreateMutex();
 
     data->global_mouse_changed = SDL_TRUE;