Merge pull request #303258 from dominicbetts/release-aio-2507-known-issues

AIO 2507: Resolve known issue

Author: prmerger-automator[bot]

articles/iot-operations/troubleshoot/known-issues.md

@@ -244,20 +244,6 @@ Data flow custom resources created in your cluster using Kubernetes aren't visib
 
 There's currently no workaround for this issue.
 
-### Unable to configure X.509 authentication for custom Kafka endpoints
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-Issue ID: 8750
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-Log signature: N/A
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-X.509 authentication for custom Kafka endpoints isn't currently supported.
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 ### Connection failures with Azure Event Grid
 
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