Newer phpunit can't support older PHP

They're very old, and 5.6 is available in Debian stable and oldstable, so drop support.
2018-07-25 10:31:52 -05:00 · 2018-07-25 10:31:52 -05:00 · 724d5b16f3
commit 724d5b16f3
parent 26560f7bca
1 changed files with 0 additions and 2 deletions
--- a/.travis.yml
+++ b/.travis.yml
@ -1,7 +1,5 @@
 language: php
 php:
-  - 5.4
-  - 5.5
  - 5.6
  - 7.0
  - 7.1