Run Huge IT Lightbox plugin only on certain page templates in WordPress

deactivate_lightbox.php

<?php
add_action( 'wp_print_scripts', 'deactivate_lightbox', 100 );
function deactivate_lightbox() {
	if ( !is_page_template('template-products-landing.php') && !is_singular( 'product' ) ) {
		wp_deregister_script( 'hugeit-lightbox-js' );
		wp_deregister_script( 'hugeit-custom-js' );
		wp_deregister_script( 'hugeit-froogaloop-js' );
		wp_deregister_script( 'mousewheel-min-js' );
		wp_deregister_script( 'hugeit-colorbox-js' );
	}
}