INVP::delete_all_data()

	public static function delete_all_data() {
		// delete all the vehicles
		self::delete_all_inventory();

		// delete unattached photos with meta keys that identify them as vehicle photos
		self::delete_attachment_orphans();

		// delete pages created during activation
		// uninstall.php doesn't load the whole plugin but calls this method
		if ( ! class_exists( 'Inventory_Presser_Allow_Inventory_As_Home_Page' ) ) {
			include_once 'class-allow-inventory-as-home-page.php';
		}
		Inventory_Presser_Allow_Inventory_As_Home_Page::delete_pages();

		// delete all terms
		if ( ! is_multisite() ) {
			self::delete_all_terms_on_blog();

			// delete the option where all this plugin's settings are stored
			delete_option( self::OPTION_NAME );
		} else {
			$sites = get_sites(
				array(
					'network' => 1,
					'limit'   => 1000,
				)
			);
			foreach ( $sites as $site ) {
				switch_to_blog( $site->blog_id );

				self::delete_all_terms_on_blog();

				// delete the option where all this plugin's settings are stored
				delete_option( self::OPTION_NAME );

				restore_current_blog();
			}
		}

		do_action( 'invp_delete_all_data' );
	}