CORE-17917 Removing permissions from flow mmapper event topic to reproduce error

[ben-millar]

👮🏻👮🏻👮🏻 !!!! DESCRIBE YOUR CHANGES HERE !!!! DO NOT FORGET !!!! 👮🏻👮🏻👮🏻

PR Checklist:

• Have you run the unit, integration and smoke tests as described here?
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Thanks for your code, it's appreciated! :)

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[corda-jenkins-ci02]

Jenkins build for PR 1340 build 4

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Jar artifact version produced by this PR: 5.1.0.37-alpha-1700151714786

[sonarqubecloud]

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