function remove_wpf_actions() {

    // Stop WP Fusion from loading the tag condition in the Oxygen builder
    remove_action( 'init', array( wp_fusion()->integrations->oxygen, 'register_condition' ) );

}

if ( function_exists( 'wp_fusion' ) ) { // This ensures there aren't any errors if WP Fusion isn't active
    add_action( 'plugins_loaded', 'remove_wpf_actions' );
}