minor #293 Remove duplicate entry (B-Galati)

This PR was merged into the 3.x-dev branch.

Discussion
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Remove duplicate entry

Commits
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24291fb Remove duplicate entry

Author: lyrixx

.travis.yml

@@ -24,7 +24,6 @@ matrix:
       env: SYMFONY_VERSION="2.8.*"
     - php: 5.6
       env: SYMFONY_VERSION="3.4.*" DEPENDENCIES=dev
-    - php: 7.1
     - php: 7.0
     - php: 7.1
     - php: 7.2