Remove depTarget
Remove depTarget

This is no longer used and it is dead code

Fixes #1887

lintangarief/traceur-compiler,google/traceur-compiler,bazaarvoice/traceur-compiler,wilsonokibe/traceur-compiler,sebgod/traceur-compiler,lintangarief/traceur-compiler,renie/traceur-compiler,sid0818/traceur-compiler,kittens/traceur-compiler,bazaarvoice/traceur-compiler,pandoraui/traceur-compiler,sid0818/traceur-compiler,johnjbarton/traceur-compiler,bjlxj2008/traceur-compiler,renie/traceur-compiler,sebmck/traceur-compiler,kittens/traceur-compiler,pandoraui/traceur-compiler,johnjbarton/traceur-compiler,rossberg-chromium/traceur-soundscript,wilsonokibe/traceur-compiler,rossberg-chromium/traceur-soundscript,longze/traceur-compiler,sebgod/traceur-compiler,arv/traceur-compiler,arv/traceur-compiler,google/traceur-compiler,sebmck/traceur-compiler,bjlxj2008/traceur-compiler,longze/traceur-compiler