Code review comment for lp:~zorba-coders/zorba/update-dfmodule

The import to XMLSchema is not required, since Zorba knows about xs:string and the rest of built-in types used in this query.
If I remove the import of XMLSchema.xsd still fails, but it looks like it's an error in the script logic, it's doing doc($file) for a file that doesn't exist:

 TR [0]: xs:anyURI(file:///home/cezar/dev/xqSample/conformance-dimensions/conf/hypercubeDimensionValid-definition.xml)
</home/cezar/dev/xqSample/conformance-dimensions/conf/xf-2006.xq>:1147,19: dynamic error [err:FODC0002]: "file:///home/cezar/dev/xqSample/conformance-dimensions/conf/hypercubeDimensionValid-definition.xml": error retrieving resource; raised at /media/sdd/dev/repo/bug867156-importsegfaults/src/runtime/sequences/sequences_impl.cpp:1849