Update .travis.yml

Author: Sunny Raj Rathod

.travis.yml

@@ -16,7 +16,7 @@ before_script:
 
 script:
     #- vendor/phpunit/phpunit/phpunit --coverage-clover build/logs/clover.xml
-    - vendor/phpunit/phpunit/phpunit --coverage-clover
+    - vendor/phpunit/phpunit/phpunit
     - cd sample-code-php
     - composer install --prefer-dist --ignore-platform-reqs
     - vendor/phpunit/phpunit/phpunit --coverage-clover ../build/logs/clover.xml