Invalid DOM L3 Core tests

The following tests are invalid: entitygetinputencoding03,
entitygetinputencoding04, entitygetxmlversion03,  entitygetxmlversion04,
entitygetxmlencoding03, entitygetxmlencoding04.

The tests verify if encoding, version, etc. info for external entity
declaration is present in the DOM tree.
However, since those external entities are never referenced in the XML
document the Xerces parser never reads the external entities and therefore
can't know encoding, xmlversion, etc.

The tests should either be removed or changed so that external entities are
referenced in the document.

Thank you,
--
Elena Litani/ IBM Toronto