Remove unused dependencies: greenlet, cffi

requirements.in

@@ -44,13 +44,6 @@ pynamodb>=3.2.1,<4
 # Use: For encryption
 cryptography>2.3.0
 
-# C Foreign Function Interface for Python.
-# License: MIT
-# Upstream url: https://bitbucket.org/cffi/cffi
-# Use: Required by cryptography package to be installed. This should be removed
-# once crytography updates their depenencies to require cffi>=1.10.0.
-cffi>1.10.0
-
 # License: BSD
 # Upstream url: https://github.com/fengsp/flask-session
 # Use: For shared sessions
@@ -130,10 +123,6 @@ gunicorn
 # Use: For concurrency
 gevent
 
-# License: MIT
-# Upstream url: https://github.com/python-greenlet/greenlet
-# Use: For concurrency
-greenlet
 
 # License: MIT
 # Upstream url: https://github.com/jsocol/pystatsd

requirements3.txt

@@ -30,7 +30,6 @@ certifi==2023.5.7
     # via requests
 cffi==1.15.1
     # via
-    #   -r requirements.in
     #   cryptography
 charset-normalizer==3.1.0
     # via requests
@@ -70,9 +69,7 @@ gevent==22.10.2
     #   -r requirements.in
     #   pytest-gevent
 greenlet==2.0.2
-    # via
-    #   -r requirements.in
-    #   gevent
+    # via gevent
 guard==1.0.1
     # via -r requirements.in
 gunicorn==20.1.0