Remove unwanted fields from Gravity Forms exports

finctions.php

// Remove unwanted fields from Gravity Forms export - updated by Robin Scott of Silicon Dales
add_filter( 'gform_export_fields', function ( $form ) {
        // array of field IDs I never want to see on the export page
        $fields_to_remove = array(
		'payment_amount',
		'payment_date',
		'payment_status',
		'transaction_id',
		'user_agent',
		'ip',
		'post_id',
		'transaction_id',
		'source_url',
		'date_created',
        );
        foreach ( $form['fields'] as $key => $field ) {
            $field_id = is_object( $field ) ? $field->id : $field['id'];
            if ( in_array( $field_id, $fields_to_remove ) ) {
                unset ( $form['fields'][ $key ] );
            }
        }
     // always return the form
    return $form;
} );