Move Elasticsearch to source available 🎉 🎉 (#29015)

* Move Elasticsearch to source available

server/enterprise/external_imports.go

@@ -15,8 +15,6 @@ import (
 	// Needed to ensure the init() method in the EE gets run
 	_ "github.com/mattermost/enterprise/data_retention"
 	// Needed to ensure the init() method in the EE gets run
-	_ "github.com/mattermost/enterprise/elasticsearch"
-	// Needed to ensure the init() method in the EE gets run
 	_ "github.com/mattermost/enterprise/ldap"
 	// Needed to ensure the init() method in the EE gets run
 	_ "github.com/mattermost/enterprise/cloud"