SDL: removed SDL_VIDEO_DRIVER_MIR remnants.

From e581c5d000a7e1160627185d3b0211d0b1022dd5 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Tue, 22 Nov 2022 20:53:04 +0300
Subject: [PATCH] removed SDL_VIDEO_DRIVER_MIR remnants.

---
 include/SDL_syswm.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/include/SDL_syswm.h b/include/SDL_syswm.h
index 87468eeeafad..df870b115f64 100644
--- a/include/SDL_syswm.h
+++ b/include/SDL_syswm.h
@@ -268,13 +268,6 @@ struct SDL_SysWMinfo
             struct xdg_positioner *xdg_positioner;  /**< Wayland xdg positioner, for popup */
         } wl;
 #endif
-#if defined(SDL_VIDEO_DRIVER_MIR)  /* no longer available, left for API/ABI compatibility. Remove in 2.1! */
-        struct
-        {
-            void *connection;  /**< Mir display server connection */
-            void *surface;  /**< Mir surface */
-        } mir;
-#endif
 
 #if defined(SDL_VIDEO_DRIVER_ANDROID)
         struct