Remove old bank fields from serializer.
Remove old bank fields from serializer.

Also remove all bank details from project serializer

onepercentclub/bluebottle,onepercentclub/bluebottle,onepercentclub/bluebottle,jfterpstra/bluebottle,jfterpstra/bluebottle,jfterpstra/bluebottle,jfterpstra/bluebottle,onepercentclub/bluebottle,onepercentclub/bluebottle