Unexpected XDG and GTK+ with system reconfigure

[mikadoZero]

I am seeing some unexpected activity listed in the output of
`guix system reconfigure`.

I am not expecting to see:

* XDG activity as the system configuration does not include anything
  related to xorg 
* GTK+ activity as there are no graphical programs in the system
  configuration

The four unexpected activities are:

creating GTK+ icon theme cache...
building cache files for GTK+ input methods...
building XDG desktop file cache...
building XDG MIME database...

How can I stop these activities for happening when the system
reconfigures?

`which gtk+`
which: no gtx+ in ...

`which xorg-server`
which: no xorg-server in ...

The services and packages part of my system configuration are:

...
(use-service-modules networking ssh virtualization)
...
(use-package-modules certs virtualization)
...
  (packages (cons* nss-certs qemu %base-packages))
...
  (services (cons* (service dhcp-client-service-type)
                   (service openssh-service-type
                            (openssh-configuration
                             (port-number 2222)))
                   (service qemu-binfmt-service-type
                            (qemu-binfmt-configuration
                             (platforms
                              (lookup-qemu-platforms
                               "arm" "aarch64" "ppc" "mips64el"))
                             (guix-support? #t)))
                   %base-services)))