Revert "Try workflow with coverage upload again"

This reverts commit c90e014.

Author: Christoph Singer

.github/workflows/tests.yml

@@ -40,9 +40,9 @@ jobs:
         run: composer update --${{ matrix.dependency-version }}
 
       - name: run tests
-        run: php vendor/bin/phpunit --coverage-clover=coverage.clover
-#        run: php vendor/bin/phpunit
+#        run: php vendor/bin/phpunit --coverage-clover=coverage.clover
+        run: php vendor/bin/phpunit
 
-      - name: upload code coverage
-        run: php vendor/bin/ocular code-coverage:upload --format=php-clover coverage.clover
+#      - name: upload code coverage
+#        run: php vendor/bin/ocular code-coverage:upload --format=php-clover coverage.clover