Revert "AUTH-1941: Adds initial SSH server implementation"

This reverts commit e9c9bf3cbd.

vendor/github.com/gliderlabs/ssh/conn.go

@@ -1,55 +0,0 @@
-package ssh
-
-import (
-	"context"
-	"net"
-	"time"
-)
-
-type serverConn struct {
-	net.Conn
-
-	idleTimeout   time.Duration
-	maxDeadline   time.Time
-	closeCanceler context.CancelFunc
-}
-
-func (c *serverConn) Write(p []byte) (n int, err error) {
-	c.updateDeadline()
-	n, err = c.Conn.Write(p)
-	if _, isNetErr := err.(net.Error); isNetErr && c.closeCanceler != nil {
-		c.closeCanceler()
-	}
-	return
-}
-
-func (c *serverConn) Read(b []byte) (n int, err error) {
-	c.updateDeadline()
-	n, err = c.Conn.Read(b)
-	if _, isNetErr := err.(net.Error); isNetErr && c.closeCanceler != nil {
-		c.closeCanceler()
-	}
-	return
-}
-
-func (c *serverConn) Close() (err error) {
-	err = c.Conn.Close()
-	if c.closeCanceler != nil {
-		c.closeCanceler()
-	}
-	return
-}
-
-func (c *serverConn) updateDeadline() {
-	switch {
-	case c.idleTimeout > 0:
-		idleDeadline := time.Now().Add(c.idleTimeout)
-		if idleDeadline.Unix() < c.maxDeadline.Unix() || c.maxDeadline.IsZero() {
-			c.Conn.SetDeadline(idleDeadline)
-			return
-		}
-		fallthrough
-	default:
-		c.Conn.SetDeadline(c.maxDeadline)
-	}
-}