Remove wpcomsh_disable_jetpack_staging_mode_for_wpcom_staging_site …

…hook

Reverts changes from https://github.com/Automattic/wpcomsh/commit/882d1cab3287489cc7ba969bed595892f4fcedc5.

projects/plugins/wpcomsh/feature-plugins/staging-sites.php

@@ -5,11 +5,6 @@
  * @package wpcomsh
  */
 
-/**
- * Name of option that shows if the site is a staging site.
- */
-const WPCOM_IS_STAGING_SITE_OPTION_NAME = 'wpcom_is_staging_site';
-
 /**
  * Returns Atomic persistent data value for wpcom_is_staging_site.
  *
@@ -30,22 +25,3 @@ function wpcomsh_is_staging_site_get_atomic_persistent_data( $wpcom_is_staging_s
 // need to hook to default_option_* too because if this option doesn't exist, the hook wouldn't run.
 add_filter( 'default_option_wpcom_is_staging_site', 'wpcomsh_is_staging_site_get_atomic_persistent_data' );
 add_filter( 'option_wpcom_is_staging_site', 'wpcomsh_is_staging_site_get_atomic_persistent_data' );
-
-/**
- * Disable Jetpack staging mode for wpcom staging sites.
- *
- * We set WP_ENVIRONMENT_TYPE constant to 'staging' for WPCOM staging sites, but we don't want
- * Jetpack working in staging mode to let us use Jetpack sync and other features for staging sites.
- *
- * @param bool $is_staging If the current site is a staging site.
- *
- * @return false|mixed
- */
-function wpcomsh_disable_jetpack_staging_mode_for_wpcom_staging_site( $is_staging ) {
-	if ( get_option( WPCOM_IS_STAGING_SITE_OPTION_NAME ) ) {
-		return false;
-	}
-
-	return $is_staging;
-}
-add_filter( 'jetpack_is_staging_site', 'wpcomsh_disable_jetpack_staging_mode_for_wpcom_staging_site' );