split-gpg2 should not pass `OPTION display` to the agent

[DemiMarie]

How to file a helpful issue

Qubes OS release

R4.2

Brief summary

split-gpg2 should not pass OPTION display to the agent. It makes no sense in a VM and should just get a fake OK response.

Steps to reproduce

Use Sequoia Chameleon.

Expected behavior

Works

Actual behavior

Fails because the connection to the agent is restricted. If the connection were unrestricted it would still not make sense. If the option must be set at all, split-gpg2 should set it unconditionally.