Problems with running tests with the `record_only()` decorator live

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- running `azdev test --module --live` on tests with the `record_only()` decorator results in just the recordings being deleted; since none of the tests were run, this shouldn't happen.
- doing the above results in the messages:
`SKIP: This test is excluded from being run live. To force a recording, please remove the recording file.`
This is inconsistent with the behavior since the recordings are deleted and the tests are not run even when the recordings are missing.

### Environment summary

Install Method (e.g. pip, interactive script, apt-get, Docker, MSI, edge build) / CLI version (`az --version`) / OS version / Shell Type (e.g. bash, cmd.exe, Bash on Windows)

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