Remove Windows-specific code for loading libpydynd.
Remove Windows-specific code for loading libpydynd.

insertinterestingnamehere/dynd-python,izaid/dynd-python,mwiebe/dynd-python,mwiebe/dynd-python,ContinuumIO/dynd-python,insertinterestingnamehere/dynd-python,ContinuumIO/dynd-python,insertinterestingnamehere/dynd-python,izaid/dynd-python,mwiebe/dynd-python,ContinuumIO/dynd-python,ContinuumIO/dynd-python,insertinterestingnamehere/dynd-python,izaid/dynd-python,izaid/dynd-python,mwiebe/dynd-python