Removed unnecessary </video> closing tag

I diffed those files and removed an unnecessary closing tag .

Please review.

https://github.com/Whonix/Whonix/commit/8b93a56d41d51d62a4360f5b867a5712a993b8a6

https://github.com/Whonix/Whonix/blob/master/libvirt/Whonix-Gateway_qemu-x86-x64.xml

Looks good thanks. Realized that memballoon tag could have the same done to it. I’ll do it later.