Remove yarn from circle

Author: Nick

circle.yml

@@ -3,13 +3,3 @@ machine:
     version: 8
   environment:
     PATH: "${PATH}:${HOME}/${CIRCLE_PROJECT_REPONAME}/node_modules/.bin"
-
-dependencies:
-  override:
-    - yarn
-  cache_directories:
-    - ~/.cache/yarn
-
-test:
-  override:
-    - yarn test