diff --git a/tls/conn.go b/tls/conn.go
index c09ec320..1589b9c4 100644
--- a/tls/conn.go
+++ b/tls/conn.go
@@ -947,28 +947,8 @@ func (c *Conn) Write(b []byte) (int, error) {
 		return 0, alertInternalError
 	}
 
-	// SSL 3.0 and TLS 1.0 are susceptible to a chosen-plaintext
-	// attack when using block mode ciphers due to predictable IVs.
-	// This can be prevented by splitting each Application Data
-	// record into two records, effectively randomizing the IV.
-	//
-	// http://www.openssl.org/~bodo/tls-cbc.txt
-	// https://bugzilla.mozilla.org/show_bug.cgi?id=665814
-	// http://www.imperialviolet.org/2012/01/15/beastfollowup.html
-
-	var m int
-	if len(b) > 1 && c.vers <= VersionTLS10 {
-		if _, ok := c.out.cipher.(cipher.BlockMode); ok {
-			n, err := c.writeRecord(recordTypeApplicationData, b[:1])
-			if err != nil {
-				return n, c.out.setErrorLocked(err)
-			}
-			m, b = 1, b[1:]
-		}
-	}
-
 	n, err := c.writeRecord(recordTypeApplicationData, b)
-	return n + m, c.out.setErrorLocked(err)
+	return n, c.out.setErrorLocked(err)
 }
 
 // Read can be made to time out and return a net.Error with Timeout() == true