During destroy entry (tombstone) under region entry lock, if the
entry had a lower region version than the recorded gc version for
that member, the entry was removed immediately which could result
in dead-lock with tombstone gc thread.

Instead of removing the entry during destroy, it was scheduled to
remove during tombstone gc.

### For all changes:
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- [Y] Have you written or updated unit tests to verify your changes?

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in a way that is compatible for inclusion under [ASF 
2.0](http://www.apache.org/legal/resolved.html#category-a)?

### Note:
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[ Full content available at: https://github.com/apache/geode/pull/3348 ]
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