Drop not existing Standalone group from PHPUnit configuration and duplicated internal tags

phpunit.xml.dist

@@ -23,7 +23,6 @@
     <testsuites>
         <testsuite>
             <directory>./tests</directory>
-            <exclude>./tests/Standalone</exclude>
         </testsuite>
     </testsuites>
 

src/ToolInfo.php

@@ -25,14 +25,8 @@ final class ToolInfo
 {
     const COMPOSER_PACKAGE_NAME = 'friendsofphp/php-cs-fixer';
 
-    /**
-     * @internal
-     */
     const COMPOSER_LEGACY_PACKAGE_NAME = 'fabpot/php-cs-fixer';
 
-    /**
-     * @internal
-     */
     public static function getComposerInstallationDetails()
     {
         static $result;