[dia/cairo-port: 153/165] Remove gdk interactive renderer

[Zander <zbrown src gnome org>]

commit 257fea5b2a131c6f2f0379a0578533f712bb9f7c
Author: Zander Brown <zbrown gnome org>
Date:   Thu Dec 6 20:53:43 2018 +0000

    Remove gdk interactive renderer
    
    From now on cairo is the default interactive renderer

 app/display.c    |   1 -
 app/render_gdk.c | 313 -------------------------------------------------------
 app/render_gdk.h |  25 -----
 3 files changed, 339 deletions(-)
---
diff --git a/app/display.c b/app/display.c
index 62075712..0001cf1b 100644
--- a/app/display.c
+++ b/app/display.c
@@ -44,7 +44,6 @@
 #include "layer_dialog.h"
 #include "load_save.h"
 #include "dia-props.h"
-#include "render_gdk.h"
 #include "renderer/diacairo.h"
 #include "diatransform.h"
 #include "recent_files.h"