DSL: Delete unused DSL.swift
DSL: Delete unused DSL.swift

Quick/DSL.swift was removed from the Xcode project file in
e32aa85a6be130a7deca54f02460d18a4480f443.

jeffh/Quick,jeffh/Quick,jondwillis/Quick,modocache/personal-fork-of-Quick,zhakui/Quick,pengleelove/Quick,Quick/Quick,BlessNeo/Quick,dgdosen/Quick,jessesquires/Quick,NatashaTheRobot/Quick,fullstackclub/Quick,Sweefties/Quick,ashfurrow/Quick,phatblat/Quick,pedrovereza/Quick,ikesyo/Quick,zhakui/Quick,github/Quick,hanangellove/Quick,cerberillo/Quick,DanielAsher/Quick,NatashaTheRobot/Quick,Quick/Quick,phatblat/Quick,orta/Quick,jondwillis/Quick,mokagio/Quick,pengleelove/Quick,pcantrell/Quick,ichu501/Quick,ArthurKK/Quick,jasonchaffee/Quick,Quick/Quick,DrewKiino/Quick,paulyoung/Quick,phatblat/Quick,Quick/Quick,jasonchaffee/Quick,msdgwzhy6/Quick,wjszf/Quick,marciok/Quick,romankl/Quick,mrackwitz/Quick,ashfurrow/Quick,ikesyo/Quick,orta/Quick,BlessNeo/Quick,marciok/Quick,luzefeng/Quick,ArthurKK/Quick,pedrovereza/Quick,phatblat/Quick,paulyoung/Quick,jasonchaffee/Quick,marciok/Quick,hwsyy/Quick,ichu501/Quick,mokagio/Quick,Sweefties/Quick,paulyoung/Quick,luzefeng/Quick,cerberillo/Quick,romankl/Quick,nchatharoo/Quick,jessesquires/Quick,jeffh/Quick,DanielAsher/Quick,dgdosen/Quick,fullstackclub/Quick,dcaunt/Quick,jahilliard/Quick,ikesyo/Quick,msdgwzhy6/Quick,modocache/personal-fork-of-Quick,mokagio/Quick,DrewKiino/Quick,dgdosen/Quick,hwsyy/Quick,nchatharoo/Quick,github/Quick,mrackwitz/Quick,wjszf/Quick,hanangellove/Quick,dcaunt/Quick,jahilliard/Quick,pcantrell/Quick