[librsvg] Remove unused vmethod

[Federico Mena Quintero <federico src gnome org>]

commit ea5f65f5126d7e78cdeb6ff0ac8b51be0236d42b
Author: Federico Mena Quintero <federico gnome org>
Date:   Wed Mar 28 21:57:23 2018 -0600

    Remove unused vmethod

 librsvg/rsvg-private.h | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/librsvg/rsvg-private.h b/librsvg/rsvg-private.h
index 1701c170..a9a20dc7 100644
--- a/librsvg/rsvg-private.h
+++ b/librsvg/rsvg-private.h
@@ -207,7 +207,6 @@ struct RsvgRender {
     void (*free) (RsvgRender * self);
 
     void             (*set_affine_on_cr)        (RsvgDrawingCtx *ctx, cairo_t *cr, cairo_matrix_t *affine);
-    void             (*insert_bbox)             (RsvgDrawingCtx *ctx, RsvgBbox *bbox);
 };
 
 static inline RsvgRender *