Update requirements.txt

backend/secfit/requirements.txt

@@ -7,6 +7,7 @@ dj-database-url==0.5.0
 Django==3.1
 django-cleanup==5.0.0
 django-cors-headers==3.4.0
+django-environ==0.4.5
 djangorestframework==3.11.1
 djangorestframework-simplejwt==4.4.0
 gunicorn==20.0.4
@@ -30,16 +31,3 @@ toml==0.10.1
 urllib3==1.25.10
 whitenoise==5.2.0
 wrapt==1.12.1
-Click==7.0
-Flask==1.0.2
-flask-heroku==0.1.9
-flask-marshmallow==0.9.0
-Flask-SQLAlchemy==2.3.2
-itsdangerous==1.1.0
-Jinja2==2.10
-MarkupSafe==1.1.0
-marshmallow==2.17.0
-marshmallow-sqlalchemy==0.15.0
-passlib==1.7.1
-SQLAlchemy==1.2.15
-Werkzeug==0.14.1