fixup! refactor(widget): Improve readability of state update sending

Author: robintown

crates/matrix-sdk/src/widget/machine/mod.rs

@@ -14,7 +14,7 @@
 
 //! No I/O logic of the [`WidgetDriver`].
 
-use std::{iter, time::Duration};
+use std::time::Duration;
 
 use driver_req::{ReadStateRequest, UpdateDelayedEventRequest};
 use from_widget::UpdateDelayedEventResponse;