Update add/remove shard coordinators to handle the sessions collection being created on the first shard

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    • Type: Task
    • Resolution: Fixed
    • Priority: Major - P3
    • 8.2.0-rc0
    • Affects Version/s: None
    • Component/s: None
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    • Catalog and Routing
    • Fully Compatible
    • CAR Team 2025-05-26, CAR Team 2025-06-09, CAR Team 2025-06-23
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    • 3
    • TBD
    • 🟥 DDL, 🟩 Routing and Topology
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      Since we reverted featureFlagSessionsCollectionCoordinatorOnConfigServer we need to drop the sessions collection on the config server during transitions to/from embedded. The coordinator implementations did not do this as they were implemented after that feature flag was enabled. This ticket is to update the coordiantors to do this so that we can re-enable featureFlagUseTopologyChangeCoordinators.

              Assignee:
              Allison Easton
              Reporter:
              Allison Easton
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                Created:
                Updated:
                Resolved: