Remove travis changes used to validate phpdbg compatibility

Author: kabel

.travis.yml

@@ -37,8 +37,6 @@ before_script:
 
 script:
   - ./phpunit --coverage-clover=coverage.xml
-  - phpenv config-rm xdebug.ini; true
-  - phpdbg -qrr ./phpunit --coverage-text
   - ./phpunit --configuration ./build/travis-ci-fail.xml > /dev/null; if [ $? -eq 0 ]; then echo "SHOULD FAIL"; false; else echo "fail checked"; fi;
   - xmllint --noout --schema phpunit.xsd phpunit.xml
   - xmllint --noout --schema phpunit.xsd tests/_files/configuration.xml