dm4f: remove lift for free from example
dm4f: remove lift for free from example

not quite working, and overriden by the following lift.

FStarLang/FStar,FStarLang/FStar,A-Manning/FStar,hoheinzollern/FStar,A-Manning/FStar,A-Manning/FStar,hoheinzollern/FStar,hoheinzollern/FStar,FStarLang/FStar,hoheinzollern/FStar