chore(ci): remove depcheck from circle testing

Uncertain of why this is currently failing - it's possible the global
version of node in the `circleci/classic` image is incompatible - that
should be investigated independently.
In the meantime, the rest of CI isn't being run.

Signed-off-by: Mike Fiedler <miketheman@gmail.com>

Author: miketheman

circle.yml

@@ -35,11 +35,9 @@ jobs:
       # install nodejs
       - run: curl -sL https://deb.nodesource.com/setup_10.x | sudo bash - && sudo apt -y install nodejs
       # install serverless & depcheck
-      - run: npm install -g serverless depcheck
+      - run: npm install -g serverless
       # install deps
       - run: npm i
-      # depcheck
-      - run: depcheck .
       # lint:
       - run: npm run lint
       # test!