Fix: Remove conditions never evaluating to true

Author: localheinz

.travis.yml

@@ -22,5 +22,3 @@ install:
 
 script:
   - vendor/bin/phpunit --coverage-text
-  - if [[ "$CHECK_LINKS" == "true" ]]; then cd docs && make linkcheck && cd ..; fi
-  - if [[ "$BUILD_DOCS" == "true" ]]; then vendor/bin/phpdoc -d src -t docs-api; fi