Removed hhvm-nightly as it's currently broken

WyriHaximus · WyriHaximus · commit a832595c382d · 2015-11-03T09:10:17.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -6,13 +6,11 @@ php:
   - 5.6
   - 7
   - hhvm
-  - hhvm-nightly
 
 matrix:
   allow_failures:
     - php: 7
     - php: hhvm
-    - php: hhvm-nightly
   fast_finish: true
 
 before_script:
