Remove abstract rule

Author: kvdnberg

README.md

@@ -61,6 +61,9 @@ In Sniff/Commenting/FunctionCommentSniff:
 - don't check docblocks for test and setUp methods (PHPunit, would be blank)
 - do check protected and private methods for docblocks
 
+In Sniff/NamingConventions/ValidClassNameSniff
+- remove the abstract class name rule
+
 In ruleset.xml
 - Disabled the class comment rule
 - Changed the concatenation spacing rule, for readability, to require 1 space around concatenation dot, instead of no spaces as the [Symfony](https://symfony.com/doc/current/contributing/code/standards.html#structure) standard requires.

Symfony3Custom/Sniffs/NamingConventions/ValidClassNameSniff.php

@@ -125,27 +125,6 @@ public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr)
                 break;
             }
 
-            /*
-             * Prefix abstract classes with Abstract.
-             */
-            if ('T_ABSTRACT' == $tokens[$stackPtr]['type']) {
-                $name = $phpcsFile->findNext(T_STRING, $stackPtr);
-                $function = $phpcsFile->findNext(T_FUNCTION, $stackPtr);
-                
-                // making sure we're not dealing with an abstract function
-                if ($name && (is_null($function)
-                    || $name < $function)
-                    && substr($tokens[$name]['content'], 0, 8) != 'Abstract'
-                ) {
-                    $phpcsFile->addError(
-                        'Abstract class name is not prefixed with "Abstract"',
-                        $stackPtr,
-                        'InvalidAbstractName'
-                    );
-                }
-                break;
-            }
-
             $stackPtr++;
         }