Pmenu
Pmenu allows you to remove and edit entries.
Screenshot

(click for fullsize)
Alternatives
MenuEntryMaker - Add, remove and edit entriesOnce installed go to:-
PuppyMenu > Desktop > Desktop Settings > Pmenu menu editor
Information and download
Pmenu - Puppy Menu Editor = Pmenu editor 0.2Learning gtkDialog (pmenu project) - Pmenu editor 3.0.0