drm/i915/skl: Don't check for ULT/ULX when detecting the PCH

IS_ULT() wasn't taking into account SKL so we had a warn with SPT-LP.

We don't realy need those checks here, and as we don't need to introduce
IS_SKL_ULT/ULX() at the moment, let's just drop them.
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_drv.c

@@ -479,12 +479,10 @@ void intel_detect_pch(struct drm_device *dev)
 				dev_priv->pch_type = PCH_SPT;
 				DRM_DEBUG_KMS("Found SunrisePoint PCH\n");
 				WARN_ON(!IS_SKYLAKE(dev));
-				WARN_ON(IS_ULT(dev));
 			} else if (id == INTEL_PCH_SPT_LP_DEVICE_ID_TYPE) {
 				dev_priv->pch_type = PCH_SPT;
 				DRM_DEBUG_KMS("Found SunrisePoint LP PCH\n");
 				WARN_ON(!IS_SKYLAKE(dev));
-				WARN_ON(!IS_ULT(dev));
 			} else
 				continue;