Remove orphaned files

Breaking this out into a little commit. Last time I checked these files were unused.

lib/generate-init.js
  Looks like the last reference to this file was removed in 2012 in
  ff031ef

lib/processbuild.js
  There are no references to processbuild.js in the current codebase. The last
  references to it are moving the file in Feb 2013:
  16ad49a
  and linting the file:
  ab90b7b