RFR: 7922: Issue using attribute selections in the stack trace view

[Jean-Philippe Bempel]

Remove check on setting the model

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Commit messages:
 - 7922: Issue using attribute selections in the stack trace view

Changes: https://git.openjdk.org/jmc/pull/439/files
 Webrev: https://webrevs.openjdk.org/?repo=jmc&pr=439&range=00
  Issue: https://bugs.openjdk.org/browse/JMC-7922
  Stats: 3 lines in 2 files changed: 0 ins; 1 del; 2 mod
  Patch: https://git.openjdk.org/jmc/pull/439.diff
  Fetch: git fetch https://git.openjdk.org/jmc pull/439/head:pull/439

PR: https://git.openjdk.org/jmc/pull/439