Remove a few more unnecessary bits

Author: Crell

.github/workflows/quality-assurance.yaml

@@ -18,7 +18,7 @@ jobs:
               with:
                   php-version: ${{ matrix.php }}
                   coverage: xdebug
-            - run: composer install --no-progress ${{ matrix.composer-flags }}
+            - run: composer install --no-progress
             - run: vendor/bin/phpunit ${{ matrix.phpunit-flags }}
     phpstan:
         name: PHPStan checks on ${{ matrix.php }}
@@ -33,7 +33,7 @@ jobs:
               with:
                   php-version: ${{ matrix.php }}
                   coverage: none
-            - run: composer install --no-progress ${{ matrix.composer-flags }}
+            - run: composer install --no-progress
             - run: composer phpstan
     cs:
         name: Code Style checks on ${{ matrix.php }}

.gitignore

@@ -2,6 +2,3 @@
 vendor
 build
 composer.lock
-
-.idea
-*.iml

composer.json

@@ -6,7 +6,6 @@
   "require-dev": {
     "friendsofphp/php-cs-fixer": "^v3.87.1",
     "php-cs-fixer/shim": "^3.85",
-    "phpmetrics/phpmetrics": "^2.9",
     "phpstan/phpstan": "^2.1.11",
     "phpunit/phpunit": "^11.1.0"
   },