Cleanup node/field/NodeLink

Currently there are comments in comment handling in NodeLink which is pretty old.

+++ b/core/modules/comment/lib/Drupal/comment/Plugin/views/field/NodeLink.phpundefined
@@ -0,0 +1,57 @@
+	// Call comment.module's hook_link: comment_link($type, $node = NULL, $teaser = FALSE)
+	// Call node by reference so that something is changed here
+	comment_node_view($node, $this->options['teaser'] ? 'teaser' : 'full');
+	// question: should we run these through:	drupal_alter('link', $links, $node);
+	// might this have unexpected consequences if these hooks expect items in $node that we don't have?
+
+	// Only render the links, if they are defined.
+	return !empty($node->content['links']['comment']) ? drupal_render($node->content['links']['comment']) : '';

All these comments relate to Drupal 6, and not the actual code here.

The issue is all about clean up this file.