hg: jdk/sandbox: 8234501: remove obsolete NET_ReadV

[chris.hegarty at oracle.com]

Changeset: bb3472aa26c8
Author:    mbaesken
Date:      2019-11-20 14:16 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/bb3472aa26c8

8234501: remove obsolete NET_ReadV
Reviewed-by: alanb, vtewari

! src/java.base/aix/native/libnet/aix_close.c
! src/java.base/linux/native/libnet/linux_close.c
! src/java.base/macosx/native/libnet/bsd_close.c
! src/java.base/solaris/native/libnet/solaris_close.c
! src/java.base/unix/native/libnet/net_util_md.h