CI: Remove superfluous npm install step from the base job

Author: cameel

.circleci/config.yml

@@ -172,9 +172,6 @@ jobs:
       - checkout
       - install-dependencies:
           cache-id: solc-js
-      - run:
-          name: install-npm
-          command: npm install
       - run:
           name: updateBinary
           command: npm run updateBinary