drm: remove unused "can_grow" parameter from drm_crtc_helper_initial_config

Cleanup some leftovers from the X port.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/i915/i915_dma.c

@@ -1049,7 +1049,7 @@ static int i915_load_modeset_init(struct drm_device *dev)
 
 	intel_modeset_init(dev);
 
-	drm_helper_initial_config(dev, false);
+	drm_helper_initial_config(dev);
 
 	return 0;