How to remove duplicate and unclickable Dropbox folder shortcut in Finder sidebar?

Question

Here is a screenshot of my Finder sidebar with the non-functional duplicate Dropbox folder shortcut:

How can I remove this non-functional duplicate Dropbox folder shortcut from the sidebar?

I have tried uninstalling Dropbox and deleting the following directories:

/Library/DropboxHelperTool
~/Dropbox.dropbox.cache

My /Library/Contextual Menu Items is empty despite what is written in the Dropbox uninstalling instructions.

Answer 1

It was a broken folder reference, and it could be removed by holding cmd+alt and dragging the shortcut off the sidebar.

Reference: How can I remove a folder that no longer exists from my Finder sidebar in Lion?