diff --git a/includes/classes/class-edac-frontend-highlight.php b/includes/classes/class-edac-frontend-highlight.php
deleted file mode 100644
index 67d80d94..00000000
--- a/includes/classes/class-edac-frontend-highlight.php
+++ /dev/null
@@ -1,110 +0,0 @@
-<?php
-/**
- * Accessibility Checker pluign file.
- *
- * @package Accessibility_Checker
- */
-
-namespace EDAC;
-
-/**
- * Class EDAC_Frontend_Highlight
- *
- * A class that handles AJAX requests for frontend highlighting of accessibility issues.
- */
-class Frontend_Highlight {
-
-	/**
-	 * Constructor function for the class.
-	 */
-	public function __construct() {
-		
-	}
-
-	/**
-	 * Initialize hooks.
-	 *
-	 * @return void
-	 */
-	public function init_hooks() {
-		add_action( 'wp_ajax_edac_frontend_highlight_ajax', array( $this, 'ajax' ) );
-	}
-
-	/**
-	 * Retrieves accessibility issues for a specific post.
-	 *
-	 * @param int $post_id The ID of the post.
-	 *
-	 * @return array|null The array of issues or null if no issues found.
-	 */
-	public function get_issues( $post_id ) {
-		global $wpdb;
-		$table_name = $wpdb->prefix . 'accessibility_checker';
-		$post_id    = intval( $post_id );
-		$siteid     = get_current_blog_id();
-		$results    = $wpdb->get_results( $wpdb->prepare( 'SELECT id, rule, ignre, object, ruletype FROM %i where postid = %d and siteid = %d', $table_name, $post_id, $siteid ), ARRAY_A ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching -- Safe variable used for table name.
-		if ( ! $results ) {
-			return null;
-		}
-		return $results;
-	}
-
-	/**
-	 * AJAX handler function for frontend highlighting requests.
-	 */
-	public function ajax() {
-
-		// nonce security.
-		if ( ! isset( $_REQUEST['nonce'] ) || ! wp_verify_nonce( sanitize_text_field( $_REQUEST['nonce'] ), 'ajax-nonce' ) ) {
-			$error = new WP_Error( '-1', 'Permission Denied' );
-			wp_send_json_error( $error );
-		}
-
-		if ( ! isset( $_REQUEST['post_id'] ) ) {
-			$error = new WP_Error( '-2', 'The id value was not set' );
-			wp_send_json_error( $error );
-		}
-
-		$post_id = isset( $_REQUEST['post_id'] ) ? intval( $_REQUEST['post_id'] ) : 0;
-		$results = $this->get_issues( $post_id );
-
-		if ( ! $results ) {
-			$error = new WP_Error( '-3', 'Issue query returned no results' );
-			wp_send_json_error( $error );
-		}
-
-		$rules = edac_register_rules();
-
-		$output = array();
-		foreach ( $results as $result ) {
-			$array     = array();
-			$rule      = edac_filter_by_value( $rules, 'slug', $result['rule'] );
-			$rule_type = ( true === boolval( $result['ignre'] ) ) ? 'ignored' : $rule[0]['rule_type'];
-
-			$array['rule_type']  = $rule_type;
-			$array['slug']       = $rule[0]['slug'];
-			$array['rule_title'] = $rule[0]['title'];
-			$array['summary']    = $rule[0]['summary'];
-			$array['link']       = edac_documentation_link( $rule[0] );
-			$array['object']     = html_entity_decode( esc_html( $result['object'] ) );
-			$array['id']         = $result['id'];
-			$array['ignored']    = $result['ignre'];
-
-			$output[] = $array;
-		}
-
-		if ( ! $output ) {
-
-			$error = new WP_Error( '-5', 'Object query returned no results' );
-			wp_send_json_error( $error );
-
-		}
-
-		wp_send_json_success( wp_json_encode( $output ) );
-	}
-}
-
-if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) {
-	$ajax = new \EDAC\Frontend_Highlight();
-	$ajax->init_hooks();
-}