ERP5Form/Form: remove non used methods

5 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-Master

01:09:52

failed ERP5.UnitTest-Master

01:22:25

failed ERP5.UnitTest-Master.Medusa

01:20:29

passed SlapOS.Eggs.UnitTest-Master.Python2

00:11:50

passed SlapOS.Eggs.UnitTest-Master.Python3

00:13:18