RFR: 8297794: Deprecate JMX Management Applets for Removal [v2]

[Kevin Walls]

> Deprecate the Java Management Extension (JMX) Management Applet (m-let) feature for removal.
> 
> This deprecation will have no impact on users of other JMX features, the JDK's built-in instrumentation, or any of the observability tools.
> 
> More details in bug, and CSR JDK-8297795

Kevin Walls has updated the pull request incrementally with one additional commit since the last revision:

  deprecated api doc text

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/11430/files
  - new: https://git.openjdk.org/jdk/pull/11430/files/b82530ad..55c7a188

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=11430&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=11430&range=00-01

  Stats: 17 lines in 4 files changed: 16 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/11430.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11430/head:pull/11430

PR: https://git.openjdk.org/jdk/pull/11430