Remove unused Pinax, WeasyPrint and debug dependencies

requirements.txt

@@ -63,7 +63,6 @@ mercantile==1.0.4
 
 # Django Apps
 dj-database-url<=0.4.2 # , python-dj-database-url (0.4.1 in ppa)
-Pinax<=0.9a2 # python-pinax (0.9a2 in our ppa)
 pinax-notifications==4.1.0 # (4.1.0 in our ppa)
 django-forms-bootstrap<=3.1.0 # python-django-forms-bootstrap (3.1.0 in our ppa)
 django-allauth<=0.34.0 # python-django-allauth (0.34.0 in our ppa)
@@ -114,7 +113,6 @@ timeout-decorator==0.4.0 # TODO
 psutil==5.4.8 # (3.4.2 in ppa)
 django-cors-headers<=2.2.0 # python-django-cors-headers (2.2.0 in our ppa)
 django-multi-email-field<=0.5.1 # python-django-multi-email-field (0.5.1 in our ppa)
-# WeasyPrint
 user-agents # python-user-agents (1.1.0 in our ppa)
 xmljson # python-xmljson (0.1.9 in our ppa)
 django-ipware<2.2
@@ -131,7 +129,6 @@ vectorformats==0.1
 #production
 uWSGI==2.0.17
 gunicorn==19.7.1
-#debug
 ipython==5.5.0
 docker==3.1.1
 invoke==0.22.1