#195818 - Waiting for 30s timeout creating entity which then fails

http://netbeans.org/bugzilla/show_bug.cgi?id=195818

Showstopper which prevents generation of entity related code in DB 
Desktop App project.

Fix: removing cleanup code which removed global classpath entries which 
are later needed for Master/Detail view code generation.

Risks: not known.

~tonda