SDL: SDL_render.h: Remove unnecessary `struct x;` before `typedef struct x x;`.

From 253c9172962fdaec7afdbfb98fdcc448f7234fef Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Thu, 16 May 2024 12:21:14 -0400
Subject: [PATCH] SDL_render.h: Remove unnecessary `struct x;` before `typedef
 struct x x;`.

---
 include/SDL3/SDL_render.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/include/SDL3/SDL_render.h b/include/SDL3/SDL_render.h
index 137a3f1981de5..ceff17815d4cc 100644
--- a/include/SDL3/SDL_render.h
+++ b/include/SDL3/SDL_render.h
@@ -125,7 +125,6 @@ typedef enum SDL_RendererLogicalPresentation
  *
  * \since This struct is available since SDL 3.0.0.
  */
-struct SDL_Renderer;
 typedef struct SDL_Renderer SDL_Renderer;
 
 /**
@@ -133,7 +132,6 @@ typedef struct SDL_Renderer SDL_Renderer;
  *
  * \since This struct is available since SDL 3.0.0.
  */
-struct SDL_Texture;
 typedef struct SDL_Texture SDL_Texture;
 
 /* Function prototypes */