RFR: 8310: Fix connections over RMI and Jolokia - undo rjmx change for 8287

[Martin Skarsaune]

This reverts commit 92fe6812699c842bd30451872b1cb0948d204333.

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Commit messages:
 - Revert "8287: Fix the JMX protocol extenders"

Changes: https://git.openjdk.org/jmc/pull/618/files
  Webrev: https://webrevs.openjdk.org/?repo=jmc&pr=618&range=00
  Issue: https://bugs.openjdk.org/browse/JMC-8310
  Stats: 4 lines in 1 file changed: 0 ins; 3 del; 1 mod
  Patch: https://git.openjdk.org/jmc/pull/618.diff
  Fetch: git fetch https://git.openjdk.org/jmc.git pull/618/head:pull/618

PR: https://git.openjdk.org/jmc/pull/618