remove broken scrutinizer CI PHP Code Sniffer integration - they ship a buggy release and the upgrade is ignored

.scrutinizer.yml

@@ -29,12 +29,6 @@ build:
     nodes:
         tests: true
         analysis:
-            dependencies:
-              after:
-                  - composer require --dev "squizlabs/php_codesniffer=3.*"
             tests:
                 override:
-                    -
-                        command: phpcs-run
-                        use_website_config: true
                     - php-scrutinizer-run