drm/i915: Kill a strange comment about DPMS functions

This comment looks like some historical leftover. Get rid of it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index b3b22d7..ec26a85 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8600,7 +8600,6 @@
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 
-	/* We always want a DPMS function */
 	if (HAS_DDI(dev)) {
 		dev_priv->display.crtc_mode_set = haswell_crtc_mode_set;
 		dev_priv->display.crtc_enable = haswell_crtc_enable;