Removes entries from a feature state object. Remove a specified property or all property from a feature's state object, depending on the value of `stateKey`. Note that updates to feature state are asynchronous, so changes made by this method migth not be immediately visible using `getStateFeature`.
Parameters
featureId
The feature identifier of the feature whose state should be removed.
sourceId
The style source identifier.
sourceLayerId
The style source layer identifier (for multi-layer sources such as vector sources).
stateKey
The key of the property to remove. If `null`, all feature's state object properties are removed.