Travis: run qunit tests without nyc.

This slows down qunit tests a lot, ~10 times.

.travis.yml

@@ -12,7 +12,7 @@ before_script:
     - bundle install --deployment --gemfile bootstrap/Gemfile --jobs=3 --retry=3 || travis_terminate 1
     - pushd bootstrap && bundle exec jekyll build && popd
 script:
-    - if [ "$TRAVIS_NODE_VERSION" = "10" ]; then npm run nyc -- npm run test:all; else npm run test; fi || travis_terminate 1
+    - if [ "$TRAVIS_NODE_VERSION" = "10" ]; then npm run nyc -- npm run test && npm run qunit; else npm run test; fi || travis_terminate 1
     - node ./src/cli-main.js --disable W003,W005 "bootstrap/_gh_pages/**/index.html" || travis_terminate 1
     - node ./src/cli-main.js test/fixtures/x-ua-compatible/missing.html &> x-ua-compatible-missing.output.actual.txt || true
     - diff test/fixtures/cli/x-ua-compatible-missing.output.txt x-ua-compatible-missing.output.actual.txt