Remove example username, password to pass security scanning checks.

web/themes/contrib/civictheme/phpunit.xml

@@ -22,7 +22,6 @@
         <ini name="memory_limit" value="-1"/>
         <!-- Example SIMPLETEST_BASE_URL value: http://localhost -->
         <env name="SIMPLETEST_BASE_URL" value="http://localhost:8000"/>
-        <!-- Example SIMPLETEST_DB value: mysql://username:password@localhost/databasename#table_prefix -->
         <env name="SIMPLETEST_DB" value="sqlite://localhost/drupal_test_extension.sqlite"/>
         <!-- Example BROWSERTEST_OUTPUT_DIRECTORY value: /path/to/webroot/sites/simpletest/browser_output -->
         <!-- In Drupal < 11, the location for the HTML files is hardcoded to