RFR: 8266531: ZAddress::address() should be removed from SA

[Yasumasa Suenaga]

`ZAddress::address()` has been removed since [JDK-8235748](https://bugs.openjdk.java.net/browse/JDK-8235748), however SA has not followed it. Thus some SA tests would fail with ZGC.
After this change, more than half of jtreg tests which are listed in ProblemList-zgc.txt pass on Linux x64 with -vmoption:-XX:+UseZGC. Please see the change of ProblemList-zgc.txt what test can be resolved.

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Commit messages:
 - 8266531: ZAddress::address() should be removed from SA

Changes: https://git.openjdk.java.net/jdk/pull/3868/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3868&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8266531
  Stats: 59 lines in 8 files changed: 13 ins; 34 del; 12 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3868.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3868/head:pull/3868

PR: https://git.openjdk.java.net/jdk/pull/3868