refs #6431 and another day. Maybe it will accept my change?

.travis.yml

@@ -118,6 +118,9 @@ install:
   - git checkout master -- ./tests/travis ./plugins/CoreConsole || true
 
 before_script:
+  - if ([ -n "$TEST_SUITE" ]);
+    then phpenv config-rm xdebug.ini;
+    fi
   - if ([ -z "$TEST_SUITE" ] || [ -n "$PLUGIN_NAME" ]);
     then composer require satooshi/php-coveralls dev-master;
     fi

plugins/CoreConsole/templates/travis.yml.twig

@@ -131,6 +131,9 @@ before_script:
 {% if customTravisBuildSteps.before_script.before|default is not empty %}{{ customTravisBuildSteps.before_script.before|raw }}
 
 {% endif %}
+  - if ([ -n "$TEST_SUITE" ]);
+    then phpenv config-rm xdebug.ini;
+    fi
   - if ([ -z "$TEST_SUITE" ] || [ -n "$PLUGIN_NAME" ]);
     then composer require satooshi/php-coveralls dev-master;
     fi