Every time I try to use Resharper, it takes only a few days before I have to uninstall it. Last time, I couldn't find a way to turn off ctrl+click navigating to a definition.
ReSharper | Options | Environment | Search & Navigation | Rich mouse navigation in the editor
Why do you want to turn it off? Do you use ctrl+click for something else?
Copy in one click when dragging a selection (very useful if you just selected words with ctrl+click).