Removing broken Mods won't hurt anything, same with removing CC. Just make sure to empty your cache folders and delete the localthumbcache.package they can hold old animations. Your Sims with CC skins should just go back to having game skins.
If the Mod is discontinued, I suggest deleting it from your game and updating so that you can continue to add new packs.
MCCC is another Mod that updates quite frequently, so it may be best to disable it when patching. You can find out more on patch day in their help thread:
https://forums.thesims.com/en_US/discussion/913483/mc-command-center-local-help-chat-thread#latest
or their Discord: https://discordapp.com/invite/AUJ8RAa