Remove the uesless folder update. (#40)

Co-authored-by: dutor <440396+dutor@users.noreply.github.com>

src/exec/update/InsertVerticesExecutor.cpp

-/* Copyright (c) 2020 vesoft inc. All rights reserved.
- *
- * This source code is licensed under Apache 2.0 License,
- * attached with Common Clause Condition 1.0, found in the LICENSES directory.
- */
-
-#include "exec/update/InsertVerticesExecutor.h"
-#include "planner/Maintain.h"
-#include "service/QueryContext.h"
-
-// common
-#include "common/clients/meta/MetaClient.h"
-
-namespace nebula {
-namespace graph {
-
-folly::Future<Status> CreateSpaceExecutor::execute() {
-    return createSpace().ensure([this]() { UNUSED(this); });
-}
-
-folly::Future<Status> CreateSpaceExecutor::createSpace() {
-    dumpLog();
-
-    auto *csNode = asNode<CreateSpace>(node());
-    return qctx()->getMetaClient()->createSpace(csNode->getSpaceDesc(), csNode->getIfNotExists())
-        .via(runner())
-        .then([this](StatusOr<bool> resp) {
-            if (!resp.ok()) return resp.status();
-            nebula::Value value;
-            finish(std::move(value));
-            return Status::OK();
-        });
-}
-
-}   // namespace graph
-}   // namespace nebula