dropped moto dependency

enviroment.yml

@@ -83,7 +83,6 @@ dependencies:
     - markus[datadog]==2.2.0
     - mock==2.0.0
     - more-itertools==4.2.0
-    - moto==1.3.14
     - mozilla-srgutil==0.1.7
     - mozilla-jsoncache==0.1.7
     - networkx==2.4

tests/test_collaborativerecommender.py

@@ -162,8 +162,7 @@ def test_can_recommend(test_ctx):
     with mock_install_mock_data(test_ctx):
         r = CollaborativeRecommender(test_ctx)
 
-        # For some reason, moto doesn't like to play nice with this call
-        # Check that we can recommend if we the user has at least an addon.
+        # Check that we can recommend if the user has at least an addon.
         assert r.can_recommend(
             {
                 "installed_addons": ["uBlock0@raymondhill.net"],