crypto/tls: remove unneeded calls to bytes.NewReader

Updates #28269

Change-Id: Iae765f85e6ae49f4b581161ed489b2f5ee27cdba
Reviewed-on: https://go-review.googlesource.com/c/145737
Reviewed-by: Brad Fitzpatrick <[email protected]>
Run-TryBot: Brad Fitzpatrick <[email protected]>
TryBot-Result: Gobot Gobot <[email protected]>

Author: Tim Cooper

src/crypto/tls/tls.go

@@ -11,7 +11,6 @@ package tls
 // https://www.imperialviolet.org/2013/02/04/luckythirteen.html.
 
 import (
-	"bytes"
 	"crypto"
 	"crypto/ecdsa"
 	"crypto/rsa"
@@ -30,21 +29,15 @@ import (
 // The configuration config must be non-nil and must include
 // at least one certificate or else set GetCertificate.
 func Server(conn net.Conn, config *Config) *Conn {
-	return &Conn{
-		conn: conn, config: config,
-		input: *bytes.NewReader(nil), // Issue 28269
-	}
+	return &Conn{conn: conn, config: config}
 }
 
 // Client returns a new TLS client side connection
 // using conn as the underlying transport.
 // The config cannot be nil: users must set either ServerName or
 // InsecureSkipVerify in the config.
 func Client(conn net.Conn, config *Config) *Conn {
-	return &Conn{
-		conn: conn, config: config, isClient: true,
-		input: *bytes.NewReader(nil), // Issue 28269
-	}
+	return &Conn{conn: conn, config: config, isClient: true}
 }
 
 // A listener implements a network listener (net.Listener) for TLS connections.