drm/i915: don't call intel_disable_pch_pll on Haswell/LPT

This function is only for the previous gens.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/intel_display.c

@@ -3639,7 +3639,6 @@ static void haswell_crtc_disable(struct drm_crtc *crtc)
 	if (is_pch_port) {
 		ironlake_fdi_disable(crtc);
 		lpt_disable_pch_transcoder(dev_priv, cpu_transcoder);
-		intel_disable_pch_pll(intel_crtc);
 		ironlake_fdi_pll_disable(intel_crtc);
 	}