Comment out newline replacements

As suggested by gliderlabs#129 to fix
side-by-side splits in screen/tmux

Author: infinisil

session.go

@@ -133,8 +133,8 @@ func (sess *session) Write(p []byte) (n int, err error) {
 		m := len(p)
 		// normalize \n to \r\n when pty is accepted.
 		// this is a hardcoded shortcut since we don't support terminal modes.
-		p = bytes.Replace(p, []byte{'\n'}, []byte{'\r', '\n'}, -1)
-		p = bytes.Replace(p, []byte{'\r', '\r', '\n'}, []byte{'\r', '\n'}, -1)
+		// p = bytes.Replace(p, []byte{'\n'}, []byte{'\r', '\n'}, -1)
+		// p = bytes.Replace(p, []byte{'\r', '\r', '\n'}, []byte{'\r', '\n'}, -1)
 		n, err = sess.Channel.Write(p)
 		if n > m {
 			n = m