New review comment by CameronNemo on void-packages repository

https://github.com/void-linux/void-packages/pull/24497#discussion_r497857133

Comment:
Typically we only specify options when something about a package is actually optional. In this case it always needs gir. Good rule of thumb is that a build option should actually change the behavior of the build, ejemplos gratis: dependencies, arguments passed to the build system.