drm/i915: remove connector object in old output structure

As all display drivers have been converted, remove the left reference
for connector object in old structure.
Signed-off-by: NZhenyu Wang <zhenyuw@linux.intel.com>

drivers/gpu/drm/i915/intel_display.c

@@ -5238,16 +5238,6 @@ void intel_modeset_cleanup(struct drm_device *dev)
 }
 
 
-/* current intel driver doesn't take advantage of encoders
-   always give back the encoder for the connector
-*/
-struct drm_encoder *intel_best_encoder(struct drm_connector *connector)
-{
-	struct intel_encoder *intel_encoder = to_intel_encoder(connector);
-
-	return &intel_encoder->enc;
-}
-
 /*
  * Return which encoder is currently attached for connector.
  */

drivers/gpu/drm/i915/intel_drv.h

@@ -96,8 +96,6 @@ struct intel_framebuffer {
 
 
 struct intel_encoder {
-	struct drm_connector base;
-
 	struct drm_encoder enc;
 	int type;
 	struct i2c_adapter *i2c_bus;
@@ -157,7 +155,6 @@ struct intel_crtc {
 };
 
 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
-#define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
 #define enc_to_intel_encoder(x) container_of(x, struct intel_encoder, enc)
 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
@@ -189,7 +186,6 @@ extern void intel_crtc_load_lut(struct drm_crtc *crtc);
 extern void intel_encoder_prepare (struct drm_encoder *encoder);
 extern void intel_encoder_commit (struct drm_encoder *encoder);
 
-extern struct drm_encoder *intel_best_encoder(struct drm_connector *connector);
 extern struct drm_encoder *intel_attached_encoder(struct drm_connector *connector);
 
 extern struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,