Sculpt: Adjust list of brushes that can use tilt functionality

Part of #82877

* Removed 'Clay Thumb' brush, as it calculates the tilt on its own
* Added 'Plane' brush as the generic version of flatten, fill, and
  scrape

Pull Request: https://projects.blender.org/blender/blender/pulls/136849

source/blender/makesrna/intern/rna_brush.cc

@@ -648,8 +648,8 @@ static bool rna_BrushCapabilitiesSculpt_has_tilt_get(PointerRNA *ptr)
               SCULPT_BRUSH_TYPE_FLATTEN,
               SCULPT_BRUSH_TYPE_FILL,
               SCULPT_BRUSH_TYPE_SCRAPE,
-              SCULPT_BRUSH_TYPE_CLAY_STRIPS,
-              SCULPT_BRUSH_TYPE_CLAY_THUMB);
+              SCULPT_BRUSH_TYPE_PLANE,
+              SCULPT_BRUSH_TYPE_CLAY_STRIPS);
 }
 
 static bool rna_TextureCapabilities_has_texture_angle_source_get(PointerRNA *ptr)