chore(test): removed failing unit test for unsupported feature

Author: Brocco

tests/acceptance/new.spec.js

@@ -159,22 +159,6 @@ describe('Acceptance: ng new', function() {
             .then(confirmBlueprintedForDir('tmp/my_blueprint'));
     });
 
-
-    it('ng new with git blueprint uses checks out the blueprint and uses it', function(){
-        this.timeout(20000); // relies on GH network stuff
-
-        return ng([
-            'new',
-            'foo',
-            '--skip-npm',
-            '--skip-bower',
-            '--skip-git',
-            '--blueprint=https://github.com/trek/app-blueprint-test.git'
-        ]).then(function() {
-            expect(existsSync('.ember-cli'));
-        });
-    });
-
     it('ng new without skip-git flag creates .git dir', function(){
         return ng([
             'new',