[Infinispan] Fix manual clear of the atomic map when Infinispan 7.0.3 is used

Description

When moving to Infinispan 7, we had to add code in InfinispanDialect to manually clear the atomic map before removing it.
This code makes the test suite pass again but is likely not very safe under concurrent updates. As soon as Infinispan's fix is out, we should remove that code and upgrade Infinispan.

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Assignee

Emmanuel Bernard

Reporter

Emmanuel Bernard

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