Remove table service-layer QueryEntitiesOptions OrderByFields property

[jcookems]

The Azure Table service does not support OrderBy (see http://msdn.microsoft.com/en-us/library/dd135725.aspx), so the OrderByFields property on QueryEntitiesOptions should be removed to prevent confusion.

[gcheng]

This is a breaking change.

[gcheng]

this could be useful in future.