message: Remove unnecessary pyyaml and coveralls travis install
diff: @@ -42,9 +42,6 @@ before_install:
  install:
  - source scripts/install-${TRAVIS_OS_NAME} # OS-specific installs
  - # TODO(mc, 2017-08-28): these should be in requirements.txt, but also are
  - # either pyyaml or coveralls needed anymore?
  - - pip install pyyaml coveralls
  - make install
  script:
  