lds[ $key ]['required'] );
			unset( $fields[ $key ]['class'] );
		}

		return $fields;
	}

	public function remove_address_fields( $data ) {
		$remove = array(
			'shipping_country',
			'shipping_address_1',
			'shipping_city',
			'shipping_state',
			'shipping_postcode',
		);

		foreach ( $remove as $key ) {
			if ( empty( $data[ $key ] ) ) {
				unset( $data[ $key ] );
			}
		}

		return $data;
	}

	public function fix_address_fields_classes( $field ) {
		if ( isset( $field['key'] ) ) {

			$key = str_replace( array( 'shipping_', 'billing_' ), '', $field['key'] );

			if ( in_array(
				$key,
				array(
					'country',
					'address_1',
					'address_2',
					'city',
					'state',
					'postcode',
				)
			) ) {

				$field['class'][] = 'address-field';

				if ( 'country' == $key ) {
					$field['class'][] = 'update_totals_on_change';
				}
			}
		}

		return $field;
	}
}