There is an updated pull request by KAction against master on the void-packages repository

https://github.com/KAction/void-packages pass-x11
https://github.com/void-linux/void-packages/pull/15632

pass: add "x11" build option
When "x11" option is disabled (enabled by default), "xclip" and
transitive dependencies on X libraries are not pulled by package
installation.

"xclip" still can be installed separately, though, to regain full
functionality.

A patch file from https://github.com/void-linux/void-packages/pull/15632.patch is attached