Xpra: Ticket #1831: gstreamer 1.14 win32 directsoundsink breakage

The fix was in r19070, backported to v2.2.x in r19071.

Details about this upstream breakage here:

Mon, 07 May 2018 04:58:24 GMT - Antoine Martin: status changed; resolution set

Sat, 23 Jan 2021 05:34:56 GMT - migration script:

this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/1831