Remove an options page from the ACF Locations dropdown.

remove_acf_options_page.php

<?php
/**
 * Remove ACFE Options Page from ACF Feild Groups Location
 *
 * @since 1.0
 */
add_filter('acf/location/rule_values/options_page', function( $choices ) {
	
	unset( $choices['acfe-licenses'] ); // options sub page menu-slug

	if ( empty( $choices ) )
		$choices[''] = __('No options pages exist', 'acf');

	return $choices;

}, 999, 1 );