Don't require class doc block

The doc block is no longer required. But if it exists ensure it's formatted properly

Chadicus/Sniffs/Commenting/ClassCommentSniff.php

@@ -45,7 +45,7 @@ public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr)
         if ($tokens[$commentEnd]['code'] !== T_DOC_COMMENT_CLOSE_TAG
             && $tokens[$commentEnd]['code'] !== T_COMMENT
         ) {
-            $phpcsFile->addError('Missing class doc comment', $stackPtr, 'Missing');
+            //Don't require the class doc block.
             return;
         }