Fix: GPv3: Unused parameter in remove_from_vertex_group

Caused by 5585d29d30.
Forgot to remove the parameter.

source/blender/blenkernel/BKE_grease_pencil_vertex_groups.hh

@@ -33,10 +33,7 @@ void assign_to_vertex_group_from_mask(CurvesGeometry &curves,
  * Remove selected vertices from the vertex group.
  * \return True if at least one vertex was removed from the group.
  */
-bool remove_from_vertex_group(GreasePencil &grease_pencil,
-                              Drawing &drawing,
-                              StringRef name,
-                              bool use_selection);
+bool remove_from_vertex_group(Drawing &drawing, StringRef name, bool use_selection);
 
 /** Remove vertices from all vertex groups. */
 void clear_vertex_groups(GreasePencil &grease_pencil);

source/blender/blenkernel/intern/grease_pencil_vertex_groups.cc

@@ -129,10 +129,7 @@ void assign_to_vertex_group(Drawing &drawing, const StringRef name, const float
   }
 }
 
-bool remove_from_vertex_group(GreasePencil &grease_pencil,
-                              Drawing &drawing,
-                              const StringRef name,
-                              const bool use_selection)
+bool remove_from_vertex_group(Drawing &drawing, const StringRef name, const bool use_selection)
 {
   bool changed = false;
   bke::CurvesGeometry &curves = drawing.strokes_for_write();

source/blender/editors/object/object_vgroup.cc

@@ -2541,7 +2541,7 @@ static void grease_pencil_clear_from_vgroup(Scene &scene,
         continue;
       }
       bke::greasepencil::Drawing &drawing = reinterpret_cast<GreasePencilDrawing *>(base)->wrap();
-      bke::greasepencil::remove_from_vertex_group(grease_pencil, drawing, dg->name, use_selection);
+      bke::greasepencil::remove_from_vertex_group(drawing, dg->name, use_selection);
     }
     /* Remove vgroup from the list. */
     BKE_object_defgroup_remove(&ob, dg);
@@ -2549,8 +2549,7 @@ static void grease_pencil_clear_from_vgroup(Scene &scene,
   else {
     Vector<MutableDrawingInfo> drawings = retrieve_editable_drawings(scene, grease_pencil);
     for (const MutableDrawingInfo &info : drawings) {
-      bke::greasepencil::remove_from_vertex_group(
-          grease_pencil, info.drawing, dg->name, use_selection);
+      bke::greasepencil::remove_from_vertex_group(info.drawing, dg->name, use_selection);
     }
   }
 }