Revert "[Observation] Ensure deinitialized Observable types don't leave active observations in memory (#82752)" (#83492)
This reverts commit a349e64039eabb6f7639f9c25870fc9dabd9984a.
This is in concert of https://github.com/swiftlang/swift/pull/83436
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838cb7a9 - Revert "[Observation] Ensure deinitialized Observable types don't leave active observations in memory (#82752)" (#83492)
