* java/net/DatagramSocket.java
	(ch): Removed.
	(receive): Use getChannel() instead of ch.
	(send): Likewise.
	(getChannel): Return null.
	* java/net/ServerSocket.java
	(ch): Removed.
	(setChannel): Removed.
	(implAccept): Use getChannel() instead of ch.
	(close): Likewise.
	(getChannel): Return null.
	* java/net/Socket.java
	(ch): Removed.
	(connect): Use getChannel() instead of ch.
	(setChannel): Removed.
	(getChannel): Return null.

From-SVN: r71516