Dropped Python Nightly from Travis CI

fuzeman · fuzeman · commit 52c56946224f · 2020-06-12T16:08:59.000+12:00
diff --git a/.travis.yml b/.travis.yml
@@ -7,7 +7,6 @@ python:
   - pypy3.6-7.1.1
   - 3.5
   - 3.6
-  - nightly
 install:
   - travis_retry pip install coveralls
   - travis_retry pip install tox-travis
