fix: drop ruby-head (3.0) from TravisCI test matrix

Sam Harrison · Sam Harrison · commit deb0c91f04e8 · 2020-09-02T10:55:42.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -3,7 +3,6 @@ env:
     - CC_TEST_REPORTER_ID=$CC_TEST_REPORTER_ID
 language: ruby
 rvm:
-  - ruby-head
   - 2.7
   - 2.6
   - 2.5
