remove wrong composer cache from rector-ci

Author: Kharhamel

.github/workflows/rector-continuous-integration.yml

@@ -31,13 +31,6 @@ jobs:
         uses: "shivammathur/setup-php@v2"
         with:
           php-version: "${{ matrix.php-version }}"
-          
-      - name: "Cache dependencies installed with composer"
-        uses: "actions/cache@v1"
-        with:
-          path: "~/.composer/cache"
-          key: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('**/composer.lock') }}"
-          restore-keys: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-"
 
       - name: "Composer install"
         run: "composer install && composer rector && composer test"