[travis-ci] Remove redundant parameter

Author: Maks3w

.travis.yml

@@ -29,7 +29,7 @@ install:
 script:
   - if [[ $EXECUTE_TEST_COVERALLS == 'true' ]]; then ./vendor/bin/phpunit -c phpunit.xml.travis --coverage-clover clover.xml ; fi
   - if [[ $EXECUTE_TEST_COVERALLS != 'true' ]]; then ./vendor/bin/phpunit -c phpunit.xml.travis ; fi
-  - if [[ $EXECUTE_CS_CHECK == 'true' ]]; then ./vendor/bin/php-cs-fixer fix -v --diff --dry-run --config-file=.php_cs ; fi
+  - if [[ $EXECUTE_CS_CHECK == 'true' ]]; then ./vendor/bin/php-cs-fixer fix -v --diff --dry-run ; fi
 
 after_script:
   - if [[ $EXECUTE_TEST_COVERALLS == 'true' ]]; then ./vendor/bin/coveralls ; fi