drm/i915: Drop bogus comments about display reset

There are comments in the gen4-5 reset functions stating that we can't
reset render and media without also doing a display reset. But that's
exactly what the code does, ie. we don't perform a display reset. Drop
the bogus comments.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/intel_uncore.c

@@ -976,7 +976,6 @@ static int i965_do_reset(struct drm_device *dev)
 	if (ret)
 		return ret;
 
-	/* We can't reset render&media without also resetting display ... */
 	pci_write_config_byte(dev->pdev, I965_GDRST,
 			      GRDOM_MEDIA | GRDOM_RESET_ENABLE);
 
@@ -1003,7 +1002,6 @@ static int ironlake_do_reset(struct drm_device *dev)
 	if (ret)
 		return ret;
 
-	/* We can't reset render&media without also resetting display ... */
 	gdrst = I915_READ(MCHBAR_MIRROR_BASE + ILK_GDSR);
 	gdrst &= ~GRDOM_MASK;
 	I915_WRITE(MCHBAR_MIRROR_BASE + ILK_GDSR,