Delete Astra single option from multisites.

astra-wp-cli.php

<?php
/**
 * Plugin Name: Astra Dev WP CLI
 *
 * @package Astra Dev
 * @since 1.0.0
 */

if ( class_exists( 'WP_CLI_Command' ) && ! class_exists( 'Astra_Dev_WP_CLI' ) ) :

	/**
	 * WP-Cli commands to manage Astra Starter Sites.
	 *
	 * @since 1.0.0
	 */
	class Astra_Dev_WP_CLI extends WP_CLI_Command {

		/**
		 * Delete Astra Settings Key
		 *
		 * # Examples
		 *
		 * 	* Single Site
		 * 		wp astra-dev delete --key={astra-settings key}
		 *
		 *  * Multisite
		 *  	wp site list --field=url | xargs -n1 -I % wp --url=% astra-dev delete --key={astra-settings key}
		 * 
		 * @since 1.0.0
		 * @param  array $args        Arguments.
		 * @param  array $assoc_args Associated Arguments.
		 */
		public function delete( $args = array(), $assoc_args = array() ) {
			$option_key = isset( $assoc_args['key'] ) ? $assoc_args['key'] : false;

			if( ! $option_key ) {
                WP_CLI::error( 'Invalid arguments. Please enter vaild Key, ex. --key={key}' );
            }

            if( ! function_exists( 'astra_delete_option' ) ) {
                WP_CLI::error( 'Function astra_delete_option() not exist.' );
            }

            astra_delete_option( $option_key );

            WP_CLI::log( sprintf( 'Option %s for Site - %s is deleted!', $option_key, get_current_blog_id() ) );
		}
	}

	/**
	 * Add Command
	 */
	WP_CLI::add_command( 'astra-dev', 'Astra_Dev_WP_CLI' );

endif;