New dashboard: delete legacy HTML templates (part 4) (#12201)

Continue the work from
* #12200

This PR mainly removes all the unused static files.

Author: humitos

.bowerrc

@@ -61,10 +61,6 @@ jobs:
       - run: pip install --user tox
       - run: tox -e pre-commit
       - run: tox -e migrations
-      - node/install:
-          node-version: '10.17.0'
-      - run: npm ci
-      - run: tox -e eslint
       - save_cache:
           key: pre-commit-cache-{{ checksum "pre-commit-cache-key.txt" }}
           paths:

.circleci/config.yml

@@ -0,0 +1 @@
+../../readthedocs/core/static/core/css/badge_only.css