remove some unused reqs

requirements.txt

@@ -4,20 +4,15 @@ SQLAlchemy==1.3.0
 django-bootstrap-pagination==1.6.2
 djangorestframework==3.4.6
 django-pdb==0.6.1
-markdown==2.6.6
-django-filter==0.14.0
-openpyxl==2.6.4
 gunicorn==19.6.0
 pytz==2016.6.1
 django-ckeditor==5.1.1
 Pillow==7.1.0
 djangorestframework-csv==1.4.1
-raven==6.10.0
+sentry-sdk[django]==1.39.1
 python-dateutil==2.8.1
 dj-database-url
 whitenoise
 tqdm
-requests
-awscli
 boto3
 probablepeople