[8u40] Review request: RT-38641- Unknown error 0x80DE0001 when trying to drag TreeView node

[Morris Meyer]

David and Kevin,

Could you please review the following change to remove the extraneous 
Windows COM debug output from Glass drag-and-drop?

Thanks much,

        --morris

JIRA - https://javafx-jira.kenai.com/browse/RT-38641
WEBREV - http://cr.openjdk.java.net/~morris/RT-38641.01/