Remove broken pypip.in badges

pypip.in is down. See the following for more details:

badges/pypipins#39

README.md

@@ -6,8 +6,6 @@ Django Scheduler
 [![Code Health](https://landscape.io/github/llazzaro/django-scheduler/master/landscape.svg?style=flat)](https://landscape.io/github/llazzaro/django-scheduler/master)
 [<img src="https://img.shields.io/coveralls/llazzaro/django-scheduler.svg">](https://coveralls.io/r/llazzaro/django-scheduler)
 [<img src="https://img.shields.io/pypi/v/django-scheduler.svg">](https://pypi.python.org/pypi/django-scheduler)
-[<img src="https://pypip.in/d/django-scheduler/badge.png">](https://pypi.python.org/pypi/django-scheduler)
-[<img src="https://pypip.in/license/django-scheduler/badge.png">](https://github.com/llazzaro/django-scheduler/blob/master/LICENSE.txt)
 [![Documentation Status](https://readthedocs.org/projects/django-scheduler/badge/)](https://django-scheduler.readthedocs.io/)