[gnome-builder] editor-frame: remove unnecessary cast checks

[Christian Hergert <chergert src gnome org>]

commit ebb0afbd9737ccf60da16ead6a5fe2eccc9fd6a8
Author: Christian Hergert <christian hergert me>
Date:   Wed Dec 24 18:29:39 2014 -0800

    editor-frame: remove unnecessary cast checks

 src/editor/gb-editor-frame.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/src/editor/gb-editor-frame.c b/src/editor/gb-editor-frame.c
index f095c85..125b503 100644
--- a/src/editor/gb-editor-frame.c
+++ b/src/editor/gb-editor-frame.c
@@ -1052,14 +1052,16 @@ static void
 gb_editor_frame_constructed (GObject *object)
 {
   GbSourceChangeMonitor *monitor = NULL;
-  GbEditorFramePrivate *priv = GB_EDITOR_FRAME (object)->priv;
+  GbEditorFramePrivate *priv;
   GtkSourceGutter *gutter;
-  GbEditorFrame *frame = GB_EDITOR_FRAME (object);
+  GbEditorFrame *frame = (GbEditorFrame *)object;
   GbSourceVim *vim;
   GSettings *settings;
 
   G_OBJECT_CLASS (gb_editor_frame_parent_class)->constructed (object);
 
+  priv = frame->priv;
+
   settings = g_settings_new ("org.gnome.builder.editor");
 
   if (priv->document)