hg: jdk9/dev/jdk: 8154436: Drop code to support Windows XP in windows async channel impl

[claes.redestad at oracle.com]

Changeset: 3459ee432728
Author:    redestad
Date:      2016-04-18 14:01 +0200
URL:       http://hg.openjdk.java.net/jdk9/dev/jdk/rev/3459ee432728

8154436: Drop code to support Windows XP in windows async channel impl
Reviewed-by: chegar, alanb

! src/java.base/windows/classes/sun/nio/ch/Iocp.java
! src/java.base/windows/classes/sun/nio/ch/WindowsAsynchronousFileChannelImpl.java
! src/java.base/windows/classes/sun/nio/ch/WindowsAsynchronousServerSocketChannelImpl.java
! src/java.base/windows/classes/sun/nio/ch/WindowsAsynchronousSocketChannelImpl.java