[mutter] cogl: Remove unused cogl_xlib_renderer_get_visual_info

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 3186e45ae5458ddcb479da47648f8d51349424d8
Author: Adam Jackson <ajax redhat com>
Date:   Thu Oct 24 16:27:52 2019 -0400

    cogl: Remove unused cogl_xlib_renderer_get_visual_info
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/885

 cogl/cogl/cogl-xlib-renderer.c | 12 ------------
 cogl/cogl/cogl-xlib-renderer.h |  6 ------
 2 files changed, 18 deletions(-)
---
diff --git a/cogl/cogl/cogl-xlib-renderer.c b/cogl/cogl/cogl-xlib-renderer.c
index 704aba894..9ee9d6a47 100644
--- a/cogl/cogl/cogl-xlib-renderer.c
+++ b/cogl/cogl/cogl-xlib-renderer.c
@@ -632,15 +632,3 @@ _cogl_xlib_renderer_output_for_rectangle (CoglRenderer *renderer,
 
   return max_overlapped;
 }
-
-XVisualInfo *
-cogl_xlib_renderer_get_visual_info (CoglRenderer *renderer)
-{
-  CoglXlibRenderer *xlib_renderer;
-
-  g_return_val_if_fail (cogl_is_renderer (renderer), NULL);
-
-  xlib_renderer = _cogl_xlib_renderer_get_data (renderer);
-
-  return xlib_renderer->xvisinfo;
-}
diff --git a/cogl/cogl/cogl-xlib-renderer.h b/cogl/cogl/cogl-xlib-renderer.h
index dd495dbc5..7e2727ab7 100644
--- a/cogl/cogl/cogl-xlib-renderer.h
+++ b/cogl/cogl/cogl-xlib-renderer.h
@@ -151,12 +151,6 @@ cogl_xlib_renderer_set_foreign_display (CoglRenderer *renderer,
 Display *
 cogl_xlib_renderer_get_display (CoglRenderer *renderer);
 
-/**
- * cogl_xlib_renderer_get_visual_info: (skip)
- */
-XVisualInfo *
-cogl_xlib_renderer_get_visual_info (CoglRenderer *renderer);
-
 /**
  * cogl_xlib_renderer_request_reset_on_video_memory_purge: (skip)
  * @renderer: a #CoglRenderer