So you just installed OM Lx 4 and you’re wanting to run ‘OM-Welcome>Configure>Remove Unused Packages’ to remove mostly unused locales and a handful of unused hardware packages. (You could in Lx 3 also run this from cli as ‘remove-unused-packages’.)
Well you can’t because we don’t have it in Lx 4. So if you want to remove the unused locales this should do it for English only users:
# dnf remove locales-da locales-af locales-ko locales-zh locales-pl locales-id locales-uk locales-es locales-he locales-ja locales-ru locales-de locales-ar locales-it locales-hu locales-nl locales-pt locales-fr locales-tr locales-no locales-hi locales-ro locales-cs
for those of you better educated than me language wise just remove from that list all the other languages you wish to keep. (And be thankful that your country does a better job of educating people about languages than my country does.)
After running that you should still have:
# rpm -qa | grep locales locales-2.28-7.x86_64 locales-en-2.28-7.x86_64
Plus any others you removed from the list to keep.
Post-edit: Users that don’t use British English may also want to:
# dnf remove myspell-en_GB libreoffice-l10n-en_GB firefox-en_GB
Post-edit: The above commands are already pretty thoroughly tested. I’ve done them 10 or more times so far with Cooker/Lx4 installs in VBox and on hardware.