SDL: Removed unused SDL_OSEvent

From 9458cbf75e8a52b5290552984845218ceb6fc8bb Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Tue, 7 Nov 2023 09:14:17 -0800
Subject: [PATCH] Removed unused SDL_OSEvent

---
 include/SDL3/SDL_events.h | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/include/SDL3/SDL_events.h b/include/SDL3/SDL_events.h
index ee4e43d9626d..427e9416b7a4 100644
--- a/include/SDL3/SDL_events.h
+++ b/include/SDL3/SDL_events.h
@@ -559,15 +559,6 @@ typedef struct SDL_QuitEvent
     Uint64 timestamp;   /**< In nanoseconds, populated using SDL_GetTicksNS() */
 } SDL_QuitEvent;
 
-/**
- *  OS Specific event
- */
-typedef struct SDL_OSEvent
-{
-    Uint32 type;        /**< ::SDL_EVENT_QUIT */
-    Uint64 timestamp;   /**< In nanoseconds, populated using SDL_GetTicksNS() */
-} SDL_OSEvent;
-
 /**
  *  A user-defined event type (event.user.*)
  */