Remove cogl_context_set_default API

For cogl 2.0 we don't want to have a default context. In the meantime
we can simply assume that calling cogl_context_new() implicitly
sets that context as the default context before returning.

Signed-off-by: Neil Roberts <neil@linux.intel.com>

cogl/cogl-context.c

@@ -498,16 +498,6 @@ _cogl_context_get_default (void)
   return _context;
 }
 
-void
-cogl_set_default_context (CoglContext *context)
-{
-  cogl_object_ref (context);
-
-  if (_context)
-    cogl_object_unref (_context);
-  _context = context;
-}
-
 #ifdef COGL_HAS_EGL_SUPPORT
 EGLDisplay
 cogl_context_egl_get_egl_display (CoglContext *context)

cogl/cogl-context.h

@@ -61,10 +61,6 @@ CoglContext *
 cogl_context_new (CoglDisplay *display,
                   GError **error);
 
-#define cogl_set_default_context cogl_set_default_context_EXP
-void
-cogl_set_default_context (CoglContext *context);
-
 #ifdef COGL_HAS_EGL_SUPPORT
 #define cogl_context_egl_get_egl_display cogl_context_egl_get_egl_display_EXP
 EGLDisplay

examples/x11-foreign.c

@@ -104,9 +104,6 @@ main (int argc, char **argv)
       fprintf (stderr, "Failed to create context: %s\n", error->message);
       return 1;
     }
-  /* Eventually we want to get rid of any "default context" but for now it's
-   * needed...  */
-  cogl_set_default_context (ctx);
 
   onscreen = cogl_onscreen_new (ctx, 640, 480);