Use an array of meta keys to remove fields from the WP-Members registration form

/**
 * Remove fields from the registration form using and array of
 * meta keys. Loops through the array to remove (unset) fields 
 * found in the array from the settings.
 */
add_filter( 'wpmem_fields', 'my_remove_reg_fields_by_array', 10, 2 );
function my_remove_reg_fields_by_array( $fields, $tag ) {
 
    if ( 'register' == $tag ) {
     
        $remove_meta = array ( 'billing_address_1', 'billing_address_2', 'billing_postcode', 'billing_country' );
         
        foreach ( $remove_meta as $meta ) {
            unset( $fields[ $meta ] );
        }
    }
     
    return $fields;
}