drm/i915: be less verbose when handling gmbus/aux irqs

Having 9500 lines repeated on dmesg does not help me at all.
Signed-off-by: NPaulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_irq.c

@@ -529,8 +529,6 @@ static void gmbus_irq_handler(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = (drm_i915_private_t *) dev->dev_private;
 
-	DRM_DEBUG_DRIVER("GMBUS interrupt\n");
-
 	wake_up_all(&dev_priv->gmbus_wait_queue);
 }
 
@@ -538,8 +536,6 @@ static void dp_aux_irq_handler(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = (drm_i915_private_t *) dev->dev_private;
 
-	DRM_DEBUG_DRIVER("AUX channel interrupt\n");
-
 	wake_up_all(&dev_priv->gmbus_wait_queue);
 }