drm/i915: Do not touch best_encoder for load detect.

This should only be touched by drm_atomic_helper.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452160762-30487-4-git-send-email-maarten.lankhorst@linux.intel.com

drivers/gpu/drm/i915/intel_display.c

@@ -10521,7 +10521,6 @@ bool intel_get_load_detect_pipe(struct drm_connector *connector,
 	}
 
 	connector_state->crtc = crtc;
-	connector_state->best_encoder = &intel_encoder->base;
 
 	crtc_state = intel_atomic_get_crtc_state(state, intel_crtc);
 	if (IS_ERR(crtc_state)) {
@@ -10617,7 +10616,6 @@ void intel_release_load_detect_pipe(struct drm_connector *connector,
 		if (IS_ERR(crtc_state))
 			goto fail;
 
-		connector_state->best_encoder = NULL;
 		connector_state->crtc = NULL;
 
 		crtc_state->base.enable = crtc_state->base.active = false;