[gtkglarea] gdkgl.c: Remove unneeded gdk_gl_context_class_init() declaration

[Javier Jardón <jjardon src gnome org>]

commit 8314962f203fffd453b92a1d7d4f4a64c92eccaa
Author: Javier Jardón <jjardon gnome org>
Date:   Wed Mar 26 00:24:12 2014 +0000

    gdkgl.c: Remove unneeded gdk_gl_context_class_init() declaration
    
    Its already declared by G_DEFINE_TYPE()

 gtkgl/gdkgl.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/gtkgl/gdkgl.c b/gtkgl/gdkgl.c
index f8a5210..c3062e6 100644
--- a/gtkgl/gdkgl.c
+++ b/gtkgl/gdkgl.c
@@ -62,8 +62,6 @@ struct _GdkGLContextClass {
 };
 typedef struct _GdkGLContextClass GdkGLContextClass;
 
-static void gdk_gl_context_class_init (GdkGLContextClass *class);
-
 /*
  *  The GdkGLPixmap class
  */