undo CL 51690043 / abf8f8812575

Breaks FreeBSD build of subrepo for non-tip users.

««« original CL description
go.crypto/ssh/terminal: enable freebsd build

syscall.Termios, which was the only thing breaking the build, is
available in go tip now
(https://code.google.com/p/go/source/detail?r=873d664b00ec)

R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/51690043

»»»

R=golang-codereviews, dave
CC=golang-codereviews
https://golang.org/cl/51100044
2 files changed