Remove tests for python versions below 2.7

Author: thenamesweretakenalready

.circleci/config.yml

@@ -6,7 +6,6 @@ workflows:
         jobs:
         - test-3.8
         - test-3.6
-        - test-2.7
 
 jobs:
   test-3.8: &tests
@@ -36,7 +35,3 @@ jobs:
     <<: *tests
     docker:
       - image: circleci/python:3.6
-  test-2.7:
-    <<: *tests
-    docker:
-      - image: circleci/python:2.7