Apple can't afford the costly GPG licenses to sign releases apparently,
but the sha256 matches some OpenWRT and FreshPorts repos...

Fixes CVE-2015-7988.

Removing windows build patches, fixed upstream (except for the last hunk
of the SOCKET patch, but that is in code that is only used on MacOSX).

Change-Id: I9fdba5929badb75f995c66da0850d188780e7beb
Reviewed-on: https://gerrit.libreoffice.org/68092
Tested-by: Jenkins
Reviewed-by: Michael Stahl <Michael.Stahl@cib.de>