drm/i915: remove leftover for_each_intel_crtc_masked

The last user of for_each_intel_crtc_masked macro was removed in

commit 0a9ab303
Author: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Date:   Tue Apr 21 17:13:04 2015 +0300

    drm/i915: Remove all *_pipes flags from modeset

Get rid of the unused macro.

Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: NAnder Conselvan de Oliveira <conselvan2@gmail.com>
Signed-off-by: NJani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1472126651-13825-1-git-send-email-jani.nikula@intel.com

drivers/gpu/drm/i915/intel_display.c

@@ -13122,12 +13122,6 @@ static bool intel_fuzzy_clock_check(int clock1, int clock2)
 	return false;
 }
 
-#define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
-	list_for_each_entry((intel_crtc), \
-			    &(dev)->mode_config.crtc_list, \
-			    base.head) \
-		for_each_if (mask & (1 <<(intel_crtc)->pipe))
-
 static bool
 intel_compare_m_n(unsigned int m, unsigned int n,
 		  unsigned int m2, unsigned int n2,
@@ -14579,8 +14573,6 @@ void intel_crtc_restore_mode(struct drm_crtc *crtc)
 		drm_atomic_state_free(state);
 }
 
-#undef for_each_intel_crtc_masked
-
 /*
  * FIXME: Remove this once i915 is fully DRIVER_ATOMIC by calling
  *        drm_atomic_helper_legacy_gamma_set() directly.