remove some unused variables and return values

apple/OmnivoreKit/Sources/App/AppExtensions/Intents/SavePasteboardToOmnivore.swift

@@ -25,7 +25,7 @@ struct SaveLinkToOmnivoreIntent: AppIntent {
     do {
       let services = Services()
       let requestId = UUID().uuidString.lowercased()
-      let saveResult = try await services.dataService.saveURL(id: requestId, url: link.absoluteString)
+      _ = try await services.dataService.saveURL(id: requestId, url: link.absoluteString)
 
       return .result(dialog: "Link saved to Omnivore")
     } catch {

apple/OmnivoreKit/Sources/App/Views/Profile/PushNotificationDevicesView.swift

@@ -20,7 +20,7 @@ import Views
   func removeToken(dataService: DataService, tokenID: String) {
     if let idx = devices.firstIndex(where: { $0.id == tokenID }) {
       Task {
-        try await dataService.syncDeviceToken(deviceTokenOperation: .deleteToken(tokenID: tokenID))
+        _ = try await dataService.syncDeviceToken(deviceTokenOperation: .deleteToken(tokenID: tokenID))
         devices.remove(at: idx)
       }
     }

apple/OmnivoreKit/Sources/App/Views/Profile/PushNotificationSettingsView.swift

@@ -28,7 +28,7 @@ import Views
           self.desiredNotificationsEnabled = granted
           Task {
             if let savedToken = UserDefaults.standard.string(forKey: UserDefaultKey.firebasePushToken.rawValue) {
-              try? await dataService.syncDeviceToken(
+              _ = try? await dataService.syncDeviceToken(
                 deviceTokenOperation: DeviceTokenOperation.addToken(token: savedToken))
             }
             NotificationCenter.default.post(name: Notification.Name("ReconfigurePushNotifications"), object: nil)

apple/OmnivoreKit/Sources/Services/DataService/Queries/Devices.swift

@@ -34,7 +34,6 @@ public extension DataService {
 
     let path = appEnvironment.graphqlPath
     let headers = networker.defaultHeaders
-    let context = backgroundContext
 
     return try await withCheckedThrowingContinuation { continuation in
       send(query, to: path, headers: headers) { queryResult in