[mutter] clutter-actor: Remove unused clutter_actor_get_allocation_vertices

[verdre <jonasd src gnome org>]

commit 1880e222291b6f5290b12952731db84cec3441fc
Author: Daniel van Vugt <daniel van vugt canonical com>
Date:   Thu Mar 19 15:25:02 2020 +0800

    clutter-actor: Remove unused clutter_actor_get_allocation_vertices
    
    It was also apparently broken (mutter#1126)
    
    Closes: https://gitlab.gnome.org/GNOME/mutter/issues/1126

 clutter/clutter/clutter-actor.c | 90 -----------------------------------------
 clutter/clutter/clutter-actor.h |  4 --
 2 files changed, 94 deletions(-)
---
diff --git a/clutter/clutter/clutter-actor.c b/clutter/clutter/clutter-actor.c
index 67ec1b4d4..aa152977b 100644
--- a/clutter/clutter/clutter-actor.c
+++ b/clutter/clutter/clutter-actor.c
@@ -3076,96 +3076,6 @@ _clutter_actor_transform_and_project_box (ClutterActor          *self,
     _clutter_actor_fully_transform_vertices (self, box_vertices, verts, 4);
 }
 
-/**
- * clutter_actor_get_allocation_vertices:
- * @self: A #ClutterActor
- * @ancestor: (allow-none): A #ClutterActor to calculate the vertices
- *   against, or %NULL to use the #ClutterStage
- * @verts: (out) (array fixed-size=4): return
- *   location for an array of 4 #graphene_point3d_t in which to store the result
- *
- * Calculates the transformed coordinates of the four corners of the
- * actor in the plane of @ancestor. The returned vertices relate to
- * the #ClutterActorBox coordinates as follows:
- *
- *  - @verts[0] contains (x1, y1)
- *  - @verts[1] contains (x2, y1)
- *  - @verts[2] contains (x1, y2)
- *  - @verts[3] contains (x2, y2)
- *
- * If @ancestor is %NULL the ancestor will be the #ClutterStage. In
- * this case, the coordinates returned will be the coordinates on
- * the stage before the projection is applied. This is different from
- * the behaviour of clutter_actor_get_abs_allocation_vertices().
- *
- * Since: 0.6
- */
-void
-clutter_actor_get_allocation_vertices (ClutterActor       *self,
-                                       ClutterActor       *ancestor,
-                                       graphene_point3d_t *verts)
-{
-  ClutterActorPrivate *priv;
-  ClutterActorBox box;
-  graphene_point3d_t vertices[4];
-  CoglMatrix modelview;
-
-  g_return_if_fail (CLUTTER_IS_ACTOR (self));
-  g_return_if_fail (ancestor == NULL || CLUTTER_IS_ACTOR (ancestor));
-
-  if (ancestor == NULL)
-    ancestor = _clutter_actor_get_stage_internal (self);
-
-  /* Fallback to a NOP transform if the actor isn't parented under a
-   * stage. */
-  if (ancestor == NULL)
-    ancestor = self;
-
-  priv = self->priv;
-
-  /* if the actor needs to be allocated we force a relayout, so that
-   * we will have valid values to use in the transformations */
-  if (priv->needs_allocation)
-    {
-      ClutterActor *stage = _clutter_actor_get_stage_internal (self);
-      if (stage)
-        _clutter_stage_maybe_relayout (stage);
-      else
-        {
-          box.x1 = box.y1 = 0;
-          /* The result isn't really meaningful in this case but at
-           * least try to do something *vaguely* reasonable... */
-          clutter_actor_get_size (self, &box.x2, &box.y2);
-        }
-    }
-
-  clutter_actor_get_allocation_box (self, &box);
-
-  vertices[0].x = box.x1;
-  vertices[0].y = box.y1;
-  vertices[0].z = 0;
-  vertices[1].x = box.x2;
-  vertices[1].y = box.y1;
-  vertices[1].z = 0;
-  vertices[2].x = box.x1;
-  vertices[2].y = box.y2;
-  vertices[2].z = 0;
-  vertices[3].x = box.x2;
-  vertices[3].y = box.y2;
-  vertices[3].z = 0;
-
-  _clutter_actor_get_relative_transformation_matrix (self, ancestor,
-                                                     &modelview);
-
-  cogl_matrix_transform_points (&modelview,
-                                3,
-                                sizeof (graphene_point3d_t),
-                                vertices,
-                                sizeof (graphene_point3d_t),
-                                vertices,
-                                4);
-}
-
 /**
  * clutter_actor_get_abs_allocation_vertices:
  * @self: A #ClutterActor
diff --git a/clutter/clutter/clutter-actor.h b/clutter/clutter/clutter-actor.h
index a4140022e..220289d53 100644
--- a/clutter/clutter/clutter-actor.h
+++ b/clutter/clutter/clutter-actor.h
@@ -443,10 +443,6 @@ CLUTTER_EXPORT
 void                            clutter_actor_get_allocation_box                (ClutterActor                
*self,
                                                                                  ClutterActorBox             
*box);
 CLUTTER_EXPORT
-void                            clutter_actor_get_allocation_vertices           (ClutterActor                
*self,
-                                                                                 ClutterActor                
*ancestor,
-                                                                                 graphene_point3d_t          
*verts);
-CLUTTER_EXPORT
 gboolean                        clutter_actor_has_allocation                    (ClutterActor                
*self);
 CLUTTER_EXPORT
 void                            clutter_actor_set_size                          (ClutterActor                
*self,