Remove invalid URIs from testing with QXmlQuery

QXmlQuery requires proper URIs/URLs and these two aren't valid. A scheme
is never empty and a path cannot contain a colon before the first slash.

QUrl has been pointing out that new error condition since
7d62f8ace542e04e3ddf92eec4fdad8d34ac9585

Change-Id: Ic206908345f45b1cce0a3733584a65b02b8c2791
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>