Remove unused dialog and finding helpers

mac/Sources/Byre/Dialogs.swift

@@ -100,10 +100,6 @@ final class Overlays {
         return await showModal(content, [ModalButton(label: "Cancel", value: "cancel"), ModalButton(label: action, value: "ok", primary: true, danger: danger)], anchor: anchor, inPane: inPane) == "ok"
     }
 
-    func showChoice(_ content: some View, _ choices: [ModalButton], anchor: CGRect? = nil) async -> String {
-        await showModal(content, [ModalButton(label: "Cancel", value: "cancel")] + choices, anchor: anchor)
-    }
-
     func answerModal(_ value: String) {
         let m = modal
         modal = nil

mac/Sources/Byre/TranscriptBuilder.swift

@@ -999,10 +999,6 @@ func findings(_ r: Review) -> [JSONDict] {
     (r.result?.value["findings"] as? [(any Sendable)?] ?? []).map { $0 as? JSONDict ?? [:] }
 }
 
-func findingCount(_ r: Review) -> Int {
-    r.state == .done ? findings(r).indices.filter { findingOpen(r, $0) }.count : 0
-}
-
 func latestReviewedSnapshot(_ events: ArraySlice<ByreEvent>) -> Int? {
     var best: Int?
     for ev in events where isReviewEvent(ev) {