[util-iso-image.sh] (trivial) remove break statement from empty case statements
Created by: aadityabagga
Current code displays message like:
-> Configuring Displaymanager ... -> No default desktop environment set, trying to detect it. -> No desktop environment detected /usr/lib/manjaro-tools/util-iso-image.sh: line 267: break: only meaningful in a for, while, or until loop -> Configured: none