hg: jdk/submit: 8204591: Expire/remove the UseAppCDS option in JDK 12

[calvin.cheung at oracle.com]

Changeset: e34379f2a1c8
Author:    ccheung
Date:      2018-07-17 11:58 -0700
URL:       http://hg.openjdk.java.net/jdk/submit/rev/e34379f2a1c8

8204591: Expire/remove the UseAppCDS option in JDK 12
Reviewed-by: jiangli, mseledtsov, iklam

! src/hotspot/share/runtime/arguments.cpp
! test/hotspot/jtreg/runtime/appcds/CommandLineFlagComboNegative.java
- test/hotspot/jtreg/runtime/appcds/MismatchedUseAppCDS.java
- test/hotspot/jtreg/runtime/appcds/test-classes/CheckIfShared.java