Do not require code coverage on phpunit.xml

Author: markrandall

tests/phpunit.xml

@@ -3,7 +3,6 @@
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:noNamespaceSchemaLocation="../vendor/phpunit/phpunit/phpunit.xsd"
     beStrictAboutChangesToGlobalState="true"
-    beStrictAboutCoverageMetadata="true"
     beStrictAboutOutputDuringTests="true"
     beStrictAboutTestsThatDoNotTestAnything="true"
     bootstrap="../src/autoload.php"
@@ -18,7 +17,6 @@
     displayDetailsOnTestsThatTriggerNotices="true"
     displayDetailsOnTestsThatTriggerWarnings="true"
     executionOrder="random"
-    requireCoverageMetadata="true"
     stopOnError="false"
     stopOnFailure="false"
     stopOnIncomplete="false"