Removed php 5.6 from travis because composer already requires 7.2

Jelle van Oosterbosch · Jelle van Oosterbosch · commit 862eec917f3b · 2020-02-10T17:11:26.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -4,7 +4,6 @@ sudo: false
 
 matrix:
   include:
-    - php: 5.6
     - php: 7.2
 
 before_install: composer self-update
