[ch] remove HHVM from travis build

Nigel Greenway · Nigel Greenway · commit 19ed4160c3aa · 2017-05-16T23:51:50.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -3,7 +3,6 @@ language: php
 php:
   - 7.0
   - 7.1
-  - hhvm
 
 before_script:
   - travis_retry composer self-update
