Revert "Code coverage scrutinizer test"

This reverts commit 71fb3679c1.

.scrutinizer.yml

@@ -3,12 +3,4 @@ tools:
     php_mess_detector: true
     php_code_sniffer: true
     sensiolabs_security_checker: true
-    php_code_coverage: true
-
-tests:
-    override:
-        -
-            command: 'phpunit --coverage-clover=some-file'
-                coverage:
-                    file: 'some-file'
-                    format: 'clover'
+    php_code_coverage: true