[librsvg] Remove unused prototype

[Federico Mena Quintero <federico src gnome org>]

commit dde39fccd1804b09ba1d4bfbc784fea8f72e13f6
Author: Federico Mena Quintero <federico gnome org>
Date:   Fri Sep 1 08:09:35 2017 -0500

    Remove unused prototype

 rsvg-cairo-render.h |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/rsvg-cairo-render.h b/rsvg-cairo-render.h
index ada9179..101ca0c 100644
--- a/rsvg-cairo-render.h
+++ b/rsvg-cairo-render.h
@@ -63,8 +63,7 @@ struct _RsvgCairoRender {
 
 G_GNUC_INTERNAL
 RsvgCairoRender *rsvg_cairo_render_new         (cairo_t * cr, double width, double height);
-G_GNUC_INTERNAL
-void           rsvg_cairo_render_rsvg_handle   (cairo_t * cr, RsvgHandle * handle);
+
 G_GNUC_INTERNAL
 RsvgDrawingCtx *rsvg_cairo_new_drawing_ctx     (cairo_t * cr, RsvgHandle * handle);