Add filter to disable comments feed json

Author: dshanske

jsonfeed-wp.php

@@ -81,7 +81,8 @@ function json_feed_links_extra( $args = array() ) {
 	if ( is_singular() ) {
 		$id   = 0;
 		$post = get_post( $id );
-		if ( comments_open() || pings_open() || $post->comment_count > 0 ) {
+		$comments = apply_filters( 'jsonfeed_comments_feed_enable', true );
+		if ( $comments && ( comments_open() || pings_open() || $post->comment_count > 0 ) ) {
 			$title = sprintf( $args['singletitle'], get_bloginfo( 'name' ), $args['separator'], the_title_attribute( array( 'echo' => false ) ) );
 			$href  = get_post_comments_feed_link( $post->ID, 'json' );
 		}