Remove the fd overload of AsyncSocket::OptionKey::apply
Remove the fd overload of AsyncSocket::OptionKey::apply

Summary: Everything has been migrated over to the NetworkSocket overload.

Reviewed By: yfeldblum

Differential Revision: D13566609

fbshipit-source-id: 920505a9e91f1acc5810949049880ed07294621b

facebook/folly,facebook/folly,facebook/folly,facebook/folly,facebook/folly