sdl2-compat: SDL_mutexP and SDL_mutexV are no longer defined by SDL3.

From 1ebcbf998b47fa6880bda55b67861e25af76d2d0 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Fri, 28 Apr 2023 11:56:04 +0300
Subject: [PATCH] SDL_mutexP and SDL_mutexV are no longer defined by SDL3.

---
 src/sdl3_include_wrapper.h | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/src/sdl3_include_wrapper.h b/src/sdl3_include_wrapper.h
index 7c544f4..b36af7c 100644
--- a/src/sdl3_include_wrapper.h
+++ b/src/sdl3_include_wrapper.h
@@ -4358,14 +4358,6 @@ typedef void (__cdecl *pfnSDL_CurrentEndThread) (unsigned);
 #undef SDL_AtomicDecRef
 #endif
 
-#ifdef SDL_mutexP
-#undef SDL_mutexP
-#endif
-
-#ifdef SDL_mutexV
-#undef SDL_mutexV
-#endif
-
 #ifdef SDL_copyp
 #undef SDL_copyp
 #endif