Cleanup: Remove unused active_vert_co from CursorGeometryInfo

Usage of the field was removed in 5f51438185

Pull Request: https://projects.blender.org/blender/blender/pulls/141923

source/blender/editors/sculpt_paint/sculpt.cc

@@ -4681,7 +4681,6 @@ bool cursor_geometry_info_update(bContext *C,
   if (!pbvh || !vc.rv3d || !BKE_base_is_visible(v3d, base)) {
     out->location = float3(0.0f);
     out->normal = float3(0.0f);
-    out->active_vertex_co = float3(0.0f);
     ss.clear_active_elements(false);
     return false;
   }
@@ -4727,14 +4726,12 @@ bool cursor_geometry_info_update(bContext *C,
   if (!srd.hit) {
     out->location = float3(0.0f);
     out->normal = float3(0.0f);
-    out->active_vertex_co = float3(0.0f);
     ss.clear_active_elements(true);
     return false;
   }
 
   /* Update the active vertex of the SculptSession. */
   ss.set_active_vert(srd.active_vertex);
-  out->active_vertex_co = ss.active_vert_position(*depsgraph, ob);
 
   switch (pbvh->type()) {
     case bke::pbvh::Type::Mesh:

source/blender/editors/sculpt_paint/sculpt_intern.hh

@@ -483,7 +483,6 @@ bool stroke_get_location_bvh(bContext *C, float out[3], const float mval[2], boo
 struct CursorGeometryInfo {
   float3 location;
   float3 normal;
-  float3 active_vertex_co;
 };
 
 /**