Revert circle config

.circleci/config.yml

@@ -45,9 +45,16 @@ jobs:
       - image: circleci/node:9.4.0
     working_directory: ~/repo
     steps:
-      - attach_workspace:
-          # Must be absolute path or relative path from working_directory
-          at: ~/repo
+      - checkout
+
+      # Download and cache dependencies
+      - restore_cache:
+          keys:
+          - v1-dependencies-{{ checksum "package.json" }}
+          # fallback to using the latest cache if no exact match is found
+          - v1-dependencies-
+
+      - run: npm install
       - run:
           name: Test
           command: npm run test