Kamelets CI job JDK11 can be removed

[Claus Ibsen]

Kamelets now requires JDK17 (Camel 4) so we can remove this CI job

https://ci-builds.apache.org/job/Camel/job/Camel-Kamelets%20Daily%20JDK11/


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Claus Ibsen
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@davsclaus
Camel in Action 2: https://www.manning.com/ibsen2