Skip using base PHP 5.5 version in TravisCI

Author: srmklive

.travis.yml

@@ -8,10 +8,6 @@ matrix:
       env: LARAVEL_VERSION=5.1.*
     - php: 5.5.9
       env: LARAVEL_VERSION=5.2.*
-    - php: 5.5
-      env: LARAVEL_VERSION=5.1.*
-    - php: 5.5
-      env: LARAVEL_VERSION=5.2.*
     - php: 5.6
       env: LARAVEL_VERSION=5.1.*
     - php: 5.6