Revert "Sync SDL3 wiki -> header"

This reverts commit 15e60cd37f7e5599f70e0256369232d4f5127893.

We don't need to link to SDL_ttf here, it makes the headers look ugly.

include/SDL3/SDL_render.h

@@ -2713,8 +2713,7 @@ extern SDL_DECLSPEC bool SDLCALL SDL_GetRenderVSync(SDL_Renderer *renderer, int
  *   break. If the text goes out of the window, it's gone.
  *
  * For serious text rendering, there are several good options, such as
- * [SDL_ttf](https://wiki.libsdl.org/SDL3_ttf/FrontPage)
- * , stb_truetype, or other external libraries.
+ * SDL_ttf, stb_truetype, or other external libraries.
  *
  * On first use, this will create an internal texture for rendering glyphs.
  * This texture will live until the renderer is destroyed.