Also, if you are not 100% sure about removing an app, just use Titanium Backup to "Freeze" the app. You can try using your phone for a while to see how things work, and if something messes up, you can always go back into Titanium Backup and un-Freeze aka "Defrost" the app.
And like someone else mentioned, definitely just do a full backup of your apps/data using Titanium.
I think you can only do that in the paid version of Titanium. In the free version you can only do backups and delete. Though you could back them all up with a batch operation then delete what you don't want. If it turns out you need it just reinstall from your backed up list.
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