Github Actions: Remove not required step cleanup

.github/workflows/php.yml

@@ -30,14 +30,6 @@ jobs:
           php-version: ${{ matrix.php }}
           tools: phpcs
 
-      # The cleanup is required because otherwise the tests fail on PHP 8+.
-      # Some of our deps are not officially compatible with that but will
-      # pass the lint tests. Removing composer.json and composer.lock first
-      # ensures that the test dep setup succeeds. Not removing vendor, but
-      # only renaming it ensures the files are scanned still.
-      - name: Cleanup
-        run: rm composer.* && mv vendor real-vendor
-
       - name: Setup dependencies
         run: |
           composer require -n --no-progress overtrue/phplint