SDL: windows/SDL_systhread.c: remove some dead code. (b82a8)

From b82a8b76b1fff19a45b61c9e5c6e4347ad2f9e64 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Tue, 7 Feb 2023 00:22:20 +0300
Subject: [PATCH] windows/SDL_systhread.c: remove some dead code.

---
 src/thread/windows/SDL_systhread.c | 20 ++++----------------
 1 file changed, 4 insertions(+), 16 deletions(-)

diff --git a/src/thread/windows/SDL_systhread.c b/src/thread/windows/SDL_systhread.c
index 5ce3bfc62217..fa8e9d1215e3 100644
--- a/src/thread/windows/SDL_systhread.c
+++ b/src/thread/windows/SDL_systhread.c
@@ -28,30 +28,18 @@
 #include "../SDL_systhread.h"
 #include "SDL_systhread_c.h"
 
-#ifndef SDL_PASSED_BEGINTHREAD_ENDTHREAD
-/* We'll use the C library from this DLL */
-#include <process.h>
-
 #ifndef STACK_SIZE_PARAM_IS_A_RESERVATION
 #define STACK_SIZE_PARAM_IS_A_RESERVATION 0x00010000
 #endif
 
-/* Cygwin gcc-3 ... MingW64 (even with a i386 host) does this like MSVC. */
-#if (defined(__MINGW32__) && (__GNUC__ < 4))
-typedef unsigned long(__cdecl *pfnSDL_CurrentBeginThread)(void *, unsigned,
-                                                          unsigned(__stdcall *func)(void *), void *arg,
-                                                          unsigned, unsigned *threadID);
-typedef void(__cdecl *pfnSDL_CurrentEndThread)(unsigned code);
-
-#else
+#ifndef SDL_PASSED_BEGINTHREAD_ENDTHREAD
+/* We'll use the C library from this DLL */
+#include <process.h>
 typedef uintptr_t(__cdecl *pfnSDL_CurrentBeginThread)(void *, unsigned,
-                                                      unsigned(__stdcall *
-                                                                   func)(void
-                                                                             *),
+                                                      unsigned(__stdcall *func)(void*),
                                                       void *arg, unsigned,
                                                       unsigned *threadID);
 typedef void(__cdecl *pfnSDL_CurrentEndThread)(unsigned code);
-#endif
 #endif /* !SDL_PASSED_BEGINTHREAD_ENDTHREAD */
 
 static DWORD RunThread(void *data)