software/dream: use current nodejs version

This software only use nodejs for a simple build step, it should be OK
to use any version.

software/dream/software.cfg

@@ -32,9 +32,6 @@ script = dream_testrunner
 initialization =
   ${manpy:initialization}
 
-[nodejs]
-<= nodejs-8.9.4
-
 [npm-install]
 recipe = plone.recipe.command
 stop-on-error = true