drm/i915: Remove WA for swapped HPD pins in broxton A stepping

Remove workaround for swapped HPD pins in broxton A stepping, which is
pre-production hardware.

Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170203140316.20792-1-ander.conselvan.de.oliveira@intel.com

drivers/gpu/drm/i915/intel_hdmi.c

@@ -1868,14 +1868,7 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
 
 	switch (port) {
 	case PORT_B:
-		/*
-		 * On BXT A0/A1, sw needs to activate DDIA HPD logic and
-		 * interrupts to check the external panel connection.
-		 */
-		if (IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1))
-			intel_encoder->hpd_pin = HPD_PORT_A;
-		else
-			intel_encoder->hpd_pin = HPD_PORT_B;
+		intel_encoder->hpd_pin = HPD_PORT_B;
 		break;
 	case PORT_C:
 		intel_encoder->hpd_pin = HPD_PORT_C;