scaffolder-backend: removed unused nodegit mock

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

plugins/scaffolder-backend/src/scaffolder/__mocks__/nodegit/index.ts

@@ -1,39 +0,0 @@
-/*
- * Copyright 2020 The Backstage Authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-export const mockIndex = {
-  addAll: jest.fn(),
-  write: jest.fn(),
-  writeTree: jest.fn().mockResolvedValue('mockoid'),
-};
-
-export const mockRepo = {
-  refreshIndex: jest.fn().mockResolvedValue(mockIndex),
-  createCommit: jest.fn(),
-};
-
-export const mockRemote = {
-  push: jest.fn(),
-};
-
-const Repository = { init: jest.fn().mockResolvedValue(mockRepo) };
-const Remote = { create: jest.fn().mockResolvedValue(mockRemote) };
-const Signature = { now: jest.fn() };
-const Cred = {
-  userpassPlaintextNew: jest.fn(),
-};
-
-export { Repository, Remote, Signature, Cred };