Switch to gRPC client in Swift app

Apple/App/TunnelButton.swift

@@ -1,73 +0,0 @@
-import SwiftUI
-
-struct TunnelButton: View {
-    @Environment(\.tunnel)
-    var tunnel: any Tunnel
-
-    private var action: Action? { tunnel.action }
-
-    var body: some View {
-        Button {
-            if let action {
-                tunnel.perform(action)
-            }
-        } label: {
-            Text(action.description)
-        }
-        .disabled(action.isDisabled)
-        .padding(.horizontal)
-        .buttonStyle(.floating)
-    }
-}
-
-extension Tunnel {
-    fileprivate var action: TunnelButton.Action? {
-        switch status {
-        case .permissionRequired, .invalid:
-            .enable
-        case .disabled, .disconnecting, .disconnected:
-            .start
-        case .connecting, .connected, .reasserting:
-            .stop
-        case .unknown, .configurationReadWriteFailed:
-            nil
-        }
-    }
-}
-
-extension TunnelButton {
-    fileprivate enum Action {
-        case enable
-        case start
-        case stop
-    }
-}
-
-extension TunnelButton.Action? {
-    var description: LocalizedStringKey {
-        switch self {
-        case .enable: "Enable"
-        case .start: "Start"
-        case .stop: "Stop"
-        case .none: "Start"
-        }
-    }
-
-    var isDisabled: Bool {
-        if case .none = self {
-            true
-        } else {
-            false
-        }
-    }
-}
-
-extension Tunnel {
-    fileprivate func perform(_ action: TunnelButton.Action) {
-        switch action {
-        case .enable: enable()
-        case .start: start()
-        case .stop: stop()
-        }
-    }
-}