Remove builds on nightly version of PHP

mnapoli · web-flow · commit aab502b7c734 · 2019-02-18T14:05:37.000+01:00
The build is failing because of composer constraints.
diff --git a/.travis.yml b/.travis.yml
@@ -8,7 +8,6 @@ php:
   - 7.1
   - 7.2
   - 7.3
-  - nightly
 
 matrix:
   fast_finish: true

-Original file line number
+Diff line change
   - 7.1
   - 7.2
   - 7.3
 -  - nightly
 matrix:
   fast_finish: true