drm/i915: remove useless DP and DDI encoder ->hot_plug hooks

The hotplug callbacks for DP and DDI effectively did nothing. Remove
them.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/intel_ddi.c

@@ -2618,20 +2618,6 @@ void intel_ddi_fdi_disable(struct drm_crtc *crtc)
 	I915_WRITE(_FDI_RXA_CTL, val);
 }
 
-static void intel_ddi_hot_plug(struct intel_encoder *intel_encoder)
-{
-	struct intel_digital_port *intel_dig_port = enc_to_dig_port(&intel_encoder->base);
-	int type = intel_dig_port->base.type;
-
-	if (type != INTEL_OUTPUT_DISPLAYPORT &&
-	    type != INTEL_OUTPUT_EDP &&
-	    type != INTEL_OUTPUT_UNKNOWN) {
-		return;
-	}
-
-	intel_dp_hot_plug(intel_encoder);
-}
-
 void intel_ddi_get_config(struct intel_encoder *encoder,
 			  struct intel_crtc_state *pipe_config)
 {
@@ -2825,7 +2811,6 @@ void intel_ddi_init(struct drm_device *dev, enum port port)
 	intel_encoder->type = INTEL_OUTPUT_UNKNOWN;
 	intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
 	intel_encoder->cloneable = 0;
-	intel_encoder->hot_plug = intel_ddi_hot_plug;
 
 	if (init_dp) {
 		if (!intel_ddi_init_dp_connector(intel_dig_port))

drivers/gpu/drm/i915/intel_dp.c

@@ -4920,12 +4920,6 @@ static const struct drm_encoder_funcs intel_dp_enc_funcs = {
 	.destroy = intel_dp_encoder_destroy,
 };
 
-void
-intel_dp_hot_plug(struct intel_encoder *intel_encoder)
-{
-	return;
-}
-
 enum irqreturn
 intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
 {
@@ -5937,7 +5931,6 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port)
 		intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
 	}
 	intel_encoder->cloneable = 0;
-	intel_encoder->hot_plug = intel_dp_hot_plug;
 
 	intel_dig_port->hpd_pulse = intel_dp_hpd_pulse;
 	dev_priv->hotplug.irq_port[port] = intel_dig_port;