travis: simplified

.travis.yml

@@ -28,15 +28,15 @@ before_script:
     # Install Nette Tester & Code Checker
     - travis_retry composer install --no-interaction --prefer-dist
     - travis_retry composer create-project nette/code-checker code-checker ~2.5 --no-interaction
-    - if [ "$coverage" == "on" ]; then coverageArgs="-p phpdbg --coverage ./coverage.xml --coverage-src ./src"; fi
+    - if [ "$coverage" ]; then coverageArgs="-p phpdbg --coverage ./coverage.xml --coverage-src ./src"; fi
 
 after_script:
     # Report Code Coverage
     - >
-      if [ "$coverage" == "on" ]; then
+      if [ "$coverage" ]; then
       wget https://github.com/satooshi/php-coveralls/releases/download/v1.0.1/coveralls.phar
-      && php coveralls.phar --verbose --config tests/.coveralls.yml
-      || true; fi
+      && php coveralls.phar --verbose --config tests/.coveralls.yml;
+      fi
 
 sudo: false