Removed SDL_HINT_RENDER_SCALE_QUALITY

Textures now default to linear filtering, use SDL_SetTextureScaleMode(texture, SDL_SCALEMODE_NEAREST) if you want nearest pixel mode instead.

include/SDL3/SDL_hints.h

@@ -1776,18 +1776,6 @@ extern "C" {
  */
 #define SDL_HINT_RENDER_PS2_DYNAMIC_VSYNC    "SDL_RENDER_PS2_DYNAMIC_VSYNC"
 
-/**
- * A variable controlling texture scaling quality.
- *
- * The variable can be set to the following values:
- *   "0" or "nearest" - Nearest pixel sampling. (default)
- *   "1" or "linear"  - Linear filtering. (supported by OpenGL and Direct3D)
- *   "2" or "best"    - Currently this is the same as "linear".
- *
- * This hint should be set before creating a texture.
- */
-#define SDL_HINT_RENDER_SCALE_QUALITY       "SDL_RENDER_SCALE_QUALITY"
-
 /**
  * A variable controlling whether updates to the SDL screen surface should be synchronized with the vertical refresh, to avoid tearing.
  *

include/SDL3/SDL_render.h

@@ -913,6 +913,8 @@ extern DECLSPEC int SDLCALL SDL_GetTextureBlendMode(SDL_Texture *texture, SDL_Bl
 /**
  * Set the scale mode used for texture scale operations.
  *
+ * The default texture scale mode is SDL_SCALEMODE_LINEAR.
+ *
  * If the scale mode is not supported, the closest supported mode is chosen.
  *
  * \param texture The texture to update.