RFR: JDK-8280583: Always build NMT

[Thomas Stuefe]

After discussing this on hotspot-runtime-dev [1], the general opinion seems to be that it would be worthwhile to get rid of INCLUDE_NMT and make NMT unconditional. This affects minimal builds only. As pointed out in the mail thread, the overhead is very small and it would get rid of one configuration to build and test.

[1] https://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2022-January/053504.html

Patch removes INCLUDE_NMT from hotspot, as well as dependent macros, as well as the associated build option.

-------------

Commit messages:
 - remove INCLUDE_NMT and dependend code

Changes: https://git.openjdk.java.net/jdk/pull/7213/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7213&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8280583
  Stats: 217 lines in 28 files changed: 10 ins; 192 del; 15 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7213.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7213/head:pull/7213

PR: https://git.openjdk.java.net/jdk/pull/7213