hg: jdk10/jdk10/jdk: 8186707: Remove libnio FileChannelImpl native close0() function

[brian.burkhalter at oracle.com]

Changeset: 603393a94dd7
Author:    bpb
Date:      2017-08-25 10:43 -0700
URL:       http://hg.openjdk.java.net/jdk10/jdk10/jdk/rev/603393a94dd7

8186707: Remove libnio FileChannelImpl native close0() function
Summary: Remove Java_sun_nio_ch_FileChannelImpl_close0() on Unix and Windows and Java_sun_nio_ch_FileDispatcherImpl_closeByHandle on Windows only
Reviewed-by: alanb

! make/mapfiles/libnio/mapfile-linux
! make/mapfiles/libnio/mapfile-macosx
! make/mapfiles/libnio/mapfile-solaris
! src/java.base/unix/native/libnio/ch/FileChannelImpl.c
! src/java.base/windows/classes/sun/nio/ch/FileDispatcherImpl.java
! src/java.base/windows/native/libnio/ch/FileChannelImpl.c
! src/java.base/windows/native/libnio/ch/FileDispatcherImpl.c