Packages.csv: Drop Dental Record Manager (non-)package

According to the VDL page:

 http://www.va.gov/vdl/application.asp?appid=66

the "Dental Record Manager" is part of the "Dental" package and is not
its own package.

Remove the incorrect package along with its duplication of the "VEJD"
namespace which belongs to the "Vendor - Document Storage Systems"
package.

Change-Id: I9b7e6b7c3fbb43edeb88bafa8fac694991e6e1d8