removing all the unnecessary packages in the requirements file

Created by: rtripath89

requirements.txt

-argh==0.26.2
-Click==7.0
-dominate==2.3.5
-eventlet==0.17.4
-Flask==1.0.2
-Flask-Bootstrap==3.3.7.1
-Flask-Login==0.4.1
-Flask-SocketIO==4.2.1
-Flask-Testing==0.7.1
-Flask-WTF==0.14.2
-greenlet==0.4.15
-gunicorn==18.0
-itsdangerous==1.1.0
-Jinja2==2.10.1
-Mako==1.0.7
-MarkupSafe==1.1.1
-pathtools==0.1.2
-pbr==5.1.3
 pika==1.1.0
-python-dateutil==1.5
-python-editor==1.0.4
-python-engineio==3.10.0
-python-socketio==4.3.1
-pytz==2013.7
-PyYAML==5.1.2
-six==1.12.0
-stevedore==1.30.1
-virtualenv==16.4.3
-virtualenv-clone==0.5.1
-virtualenvwrapper==4.8.4
-visitor==0.1.3
-Werkzeug==0.14.1
-WTForms==2.2.1