emulators/virtualbox-ose: Update to 6.1.26
This new version has a regression in the pulseaudio host audio
driver. If enabled any VMs configured to use it fails to start.
Since no fix has been found the PULSEAUDIO option is forcibly
disabled. If you have any VM configured to use pulseaudio for audio
input/output, please reconfigure them to use a different driver.
Upstream ticket: https://www.virtualbox.org/ticket/20484
Other changes:
- Remove old patches that don't apply, the audio system has been reworked upstream and the behavior of these patches is included in the new code
- Add upgrading pkg-message note about the PULSEAUDIO option issue described above
Reviewed by: koobs
Differential Revision: https://reviews.freebsd.org/D31264