Remove unnecessary nodegit imports

Author: Joshua Grosso

test/tests/callbacks/check.spec.js

@@ -1,10 +1,10 @@
 import {
   expect
 } from 'chai';
+
 import {
   Error
-} from 'nodegit';
-
+} from '../../../build/src/constants';
 import track from '../../../build/src/commands/track';
 import checkCallback from '../../../build/src/callbacks/check';
 

test/tests/callbacks/initialize.spec.js

@@ -1,10 +1,10 @@
 import {
   expect
 } from 'chai';
+
 import {
   Error
-} from 'nodegit';
-
+} from '../../../build/src/constants';
 import initialize from '../../../build/src/callbacks/initialize';
 
 describe('initialize', () => {

test/tests/utils/generateResponse.spec.js

@@ -1,10 +1,10 @@
 import {
   expect
 } from 'chai';
+
 import {
   Error
-} from 'nodegit';
-
+} from '../../../build/src/constants';
 import generateResponse from '../../../build/src/utils/generateResponse';
 
 describe('generateResponse', () => {