8255989: Remove explicitly unascribed authorship from Java source files

Reviewed-by: redestad, mr, mchung, iris, serb

src/java.base/share/classes/java/net/ServerSocket.java

@@ -75,7 +75,6 @@ import sun.net.PlatformSocketImpl;
  * </blockquote>
  * Additional (implementation specific) options may also be supported.
  *
- * @author  unascribed
  * @see     java.net.SocketImpl
  * @see     java.net.ServerSocket#setSocketFactory(java.net.SocketImplFactory)
  * @see     java.nio.channels.ServerSocketChannel

src/java.base/share/classes/java/net/Socket.java

@@ -96,7 +96,6 @@ import java.util.Collections;
  * </blockquote>
  * Additional (implementation specific) options may also be supported.
  *
- * @author  unascribed
  * @see     java.net.Socket#setSocketImplFactory(java.net.SocketImplFactory)
  * @see     java.net.SocketImpl
  * @see     java.nio.channels.SocketChannel

src/java.base/share/classes/java/net/SocketImpl.java

@@ -60,7 +60,6 @@ import sun.nio.ch.NioSocketImpl;
  * to use the old implementation. The property and old implementation will be
  * removed in a future version.
  *
- * @author  unascribed
  * @since   1.0
  */
 public abstract class SocketImpl implements SocketOptions {

src/java.base/share/classes/java/net/UnknownServiceException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1995, 2019, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1995, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -33,7 +33,6 @@ import java.io.IOException;
  * not make sense, or the application is attempting to write to a
  * read-only URL connection.
  *
- * @author  unascribed
  * @since   1.0
  */
 public class UnknownServiceException extends IOException {