SDL: Revert "Added note for migrating SDL2 code using SDL_ThreadID()"

From 48d6c70f2c1c0ff44fc0080e952e575b3714fae3 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Mon, 29 Dec 2025 09:50:18 -0800
Subject: [PATCH] Revert "Added note for migrating SDL2 code using
 SDL_ThreadID()"

This reverts commit becd08f37633a20748e0c8607f468163b8525e8b.
---
 include/SDL3/SDL_oldnames.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/include/SDL3/SDL_oldnames.h b/include/SDL3/SDL_oldnames.h
index 733f93e13fc2a..c93607e3f41bc 100644
--- a/include/SDL3/SDL_oldnames.h
+++ b/include/SDL3/SDL_oldnames.h
@@ -651,7 +651,6 @@
 #define SDL_TLSGet SDL_GetTLS
 #define SDL_TLSSet SDL_SetTLS
 #define SDL_threadID SDL_ThreadID
-#define SDL_ThreadID() SDL_GetCurrentThreadID()
 
 /* ##SDL_timer.h */
 #define SDL_GetTicks64 SDL_GetTicks
@@ -1296,7 +1295,6 @@
 #define SDL_TLSGet SDL_TLSGet_renamed_SDL_GetTLS
 #define SDL_TLSSet SDL_TLSSet_renamed_SDL_SetTLS
 #define SDL_threadID SDL_threadID_renamed_SDL_ThreadID
-#define SDL_ThreadID() SDL_ThreadID_renamed_SDL_GetCurrentThreadID()
 
 /* ##SDL_timer.h */
 #define SDL_GetTicks64 SDL_GetTicks64_renamed_SDL_GetTicks