Removed per-plugin build scripts, made unnecessary by improvements to the common scripts in org.eclipse.imp.update, which are now totally meta-data-driven.
Removed per-plugin build scripts, made unnecessary by improvements to the common scripts in org.eclipse.imp.update, which are now totally meta-data-driven.

cwi-swat/pdb.values,cwi-swat/pdb.values,usethesource/rascal-value