Remove expectedException annotations (#1113)

TESTING.md

tests/lib/SimpleSAML/ConfigurationTest.php

tests/lib/SimpleSAML/DatabaseTest.php

tests/lib/SimpleSAML/Metadata/MetaDataStorageSourceTest.php

tests/lib/SimpleSAML/ModuleTest.php

tests/lib/SimpleSAML/StoreTest.php

tests/lib/SimpleSAML/Utils/AttributesTest.php

tests/lib/SimpleSAML/Utils/ConfigTest.php

tests/lib/SimpleSAML/Utils/CryptoTest.php

tests/lib/SimpleSAML/Utils/EMailTestCase.php

tests/lib/SimpleSAML/Utils/HTTPTest.php

tests/lib/SimpleSAML/Utils/SystemTest.php

tests/lib/SimpleSAML/Utils/XMLTest.php

tests/lib/SimpleSAML/XML/ParserTest.php

tests/lib/SimpleSAML/XML/Shib13/AuthnResponseTest.php

tests/lib/SimpleSAML/XML/SignerTest.php

tests/lib/SimpleSAML/XML/ValidatorTest.php

tests/modules/core/lib/Auth/Process/AttributeAddTest.php

tests/modules/core/lib/Auth/Process/AttributeAlterTest.php

tests/modules/core/lib/Auth/Process/AttributeCopyTest.php