usb-creator-gtk: Remove and replace text about the "[host GNU/Linux distribution]"
Upstream issue merged to https://bugs.launchpad.net/ubuntu/+source/usb-creator/+bug/2036756
Screenshots are kept here as reference in the upstream issue:
usb-creator-gtk in Ubuntu 23.04
"To try or install Ubuntu...":
"You may now run Ubuntu...":
usb-creator-gtk in Trisquel 11
"To try or install Trisquel...":
"You may now run Trisquel...":