[mutter] cogl: Remove unused cogl_egl_context_get_egl_context

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

commit 3e5960b5a26e5a3e3c4407cfe95e8fe9cd6d1cc5
Author: Adam Jackson <ajax redhat com>
Date:   Thu Oct 24 16:31:43 2019 -0400

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

 cogl/cogl/cogl-egl.h               | 20 --------------------
 cogl/cogl/winsys/cogl-winsys-egl.c |  8 --------
 2 files changed, 28 deletions(-)
---
diff --git a/cogl/cogl/cogl-egl.h b/cogl/cogl/cogl-egl.h
index 8b4f17223..b9c163126 100644
--- a/cogl/cogl/cogl-egl.h
+++ b/cogl/cogl/cogl-egl.h
@@ -79,26 +79,6 @@ G_BEGIN_DECLS
 EGLDisplay
 cogl_egl_context_get_egl_display (CoglContext *context);
 
-/**
- * cogl_egl_context_get_egl_context:
- * @context: A #CoglContext pointer
- *
- * If you have done a runtime check to determine that Cogl is using
- * EGL internally then this API can be used to retrieve the EGLContext
- * handle that was setup internally. The result is undefined if Cogl
- * is not using EGL.
- *
- * Note: The current window system backend can be checked using
- * cogl_renderer_get_winsys_id().
- *
- * Return value: The internally setup EGLDisplay handle.
- * Since: 1.18
- * Stability: unstable
- */
-EGLContext
-cogl_egl_context_get_egl_context (CoglContext *context);
-
-
 G_END_DECLS
 
 /* The gobject introspection scanner seems to parse public headers in
diff --git a/cogl/cogl/winsys/cogl-winsys-egl.c b/cogl/cogl/winsys/cogl-winsys-egl.c
index 03f16fd86..99dcb8bf3 100644
--- a/cogl/cogl/winsys/cogl-winsys-egl.c
+++ b/cogl/cogl/winsys/cogl-winsys-egl.c
@@ -947,11 +947,3 @@ cogl_egl_context_get_egl_display (CoglContext *context)
 
   return egl_renderer->edpy;
 }
-
-EGLContext
-cogl_egl_context_get_egl_context (CoglContext *context)
-{
-  CoglDisplayEGL *egl_display = context->display->winsys;
-
-  return egl_display->egl_context;
-}