language: python
python:
  - 3.4
install:
  - pip install tox
script:
  - tox
env:
  - TIMEZONE=Etc/UTC TOXENV=py26
  - TIMEZONE=Etc/UTC TOXENV=py27
  - TIMEZONE=Etc/UTC TOXENV=py32
  - TIMEZONE=Etc/UTC TOXENV=py33
  - TIMEZONE=Etc/UTC TOXENV=py34
  - TIMEZONE=Etc/UTC TOXENV=pypy
  - TIMEZONE=Etc/UTC TOXENV=pypy3
  - TIMEZONE=Etc/UTC TOXENV=coverage
sudo: false

language: python
python:
  - 3.4
install:
  - pip install tox
script:
  - tox
env:
  - TOXENV=py26
  - TOXENV=py27
  - TOXENV=py32
  - TOXENV=py33
  - TOXENV=py34
  - TOXENV=pypy
  - TOXENV=pypy3
  - TOXENV=coverage
sudo: false

Remove redundant environment variables from Travis CI
Remove redundant environment variables from Travis CI

Now that Travis CI is using tox to run tests, Travis CI doesn't need to
set the `TIMESTAMP` environment variable anymore.
