I was contemplating uninstalling pantheon-files completely from elementary OS Freya 0.3.1.. Would this action break my system? I've checked the dependencies in Synaptic Package Manager but I can't make heads or tails of what any of it means to my system. Thanks for your time.
Haven't try it yet, but I don't see much of a problem.
elementary OS is build on top of Ubuntu. And Ubuntu works fine without Pantheon Files :D
Just remember to install Nautilus, Dolphin or other file manager if you don't want to see your files only via terminal.
If it happens to remove other features from elementary OS, just reinstall the package
elementary-desktop. That should reinstall all the packages needed for elementary, including the pantheon-files.