RFR: 6487: The TOPIC word in topic constants should either be the first word or removed

[Marcus Hirt]

Simply removed "_TOPIC".

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Commit messages:
 - 6487: Removing the TOPIC word from the topic constants

Changes: https://git.openjdk.java.net/jmc/pull/102/files
 Webrev: https://webrevs.openjdk.java.net/jmc/102/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JMC-6487
  Stats: 135 lines in 83 files changed: 24 ins; 29 del; 82 mod
  Patch: https://git.openjdk.java.net/jmc/pull/102.diff
  Fetch: git fetch https://git.openjdk.java.net/jmc pull/102/head:pull/102

PR: https://git.openjdk.java.net/jmc/pull/102