Remove addition of " (Publication)" to WP Publication Archive title output. Note! This requires addition of the 'wp_pubarch_publication_title' filter to line 681 of https://github.com/ericmann/WP-Publication-Archive/blob/master/lib/class.wp-publication-archive.php

gistfile1.txt

<?php
// Remove addition of "(Publication)" to WP Publication Archive title output
function rli_normalize_wp_pubarch_title_output( $modified_title, $original_title ) {
  return $original_title;
}
add_filter( 'wp_pubarch_publication_title', 'rli_normalize_wp_pubarch_title_output', 100, 2 );