How to deny user access to crxde lite?

I read this help file (http://helpx.adobe.com/cq/kb/LimitAccessCRXandCRXDE.html) and understand that how to restrict the number of links viewable to users.

However, when the user types in /crxde in the address bar, he still has access to crxde lite.

Is there a way to deny non-developer users' access to crxde lite completely from the user/group console?

i.e., remove all access rights under /libs/wcm/core/content/damadmin will not allow user to access DAM admin. What is the path for http://hostname:4502/crx/de/index.jsp?