Don't acknowledge messages to the PN server

SignalServiceKit/src/Loki/API/SnodeAPI.swift

@@ -243,25 +243,20 @@ public final class SnodeAPI : NSObject {
 
     internal static func parseRawMessagesResponse(_ rawResponse: Any, from snode: Snode, associatedWith publicKey: String) -> [SSKProtoEnvelope] {
         guard let json = rawResponse as? JSON, let rawMessages = json["messages"] as? [JSON] else { return [] }
-        if let (lastHash, expirationDate) = updateLastMessageHashValueIfPossible(for: snode, associatedWith: publicKey, from: rawMessages),
-            UserDefaults.standard[.isUsingFullAPNs] {
-            LokiPushNotificationManager.acknowledgeDelivery(forMessageWithHash: lastHash, expiration: expirationDate, publicKey: getUserHexEncodedPublicKey())
-        }
+        updateLastMessageHashValueIfPossible(for: snode, associatedWith: publicKey, from: rawMessages)
         let rawNewMessages = removeDuplicates(from: rawMessages, associatedWith: publicKey)
         let newMessages = parseProtoEnvelopes(from: rawNewMessages)
         return newMessages
     }
     
-    private static func updateLastMessageHashValueIfPossible(for snode: Snode, associatedWith publicKey: String, from rawMessages: [JSON]) -> (String, UInt64)? {
+    private static func updateLastMessageHashValueIfPossible(for snode: Snode, associatedWith publicKey: String, from rawMessages: [JSON]) {
         if let lastMessage = rawMessages.last, let lastHash = lastMessage["hash"] as? String, let expirationDate = lastMessage["expiration"] as? UInt64 {
             try! Storage.writeSync { transaction in
                 Storage.setLastMessageHashInfo(for: snode, associatedWith: publicKey, to: [ "hash" : lastHash, "expirationDate" : NSNumber(value: expirationDate) ], using: transaction)
             }
-            return (lastHash, expirationDate)
         } else if (!rawMessages.isEmpty) {
             print("[Loki] Failed to update last message hash value from: \(rawMessages).")
         }
-        return nil
     }
     
     private static func removeDuplicates(from rawMessages: [JSON], associatedWith publicKey: String) -> [JSON] {

SignalServiceKit/src/Loki/Push Notifications/LokiPushNotificationManager.swift

@@ -143,21 +143,4 @@ public final class LokiPushNotificationManager : NSObject {
     static func objc_notify(for signalMessage: SignalMessage) -> AnyPromise {
         return AnyPromise.from(notify(for: signalMessage))
     }
-
-    static func acknowledgeDelivery(forMessageWithHash hash: String, expiration: UInt64, publicKey: String) {
-        let parameters: JSON = [ "lastHash" : hash, "pubKey" : publicKey, "expiration" : expiration]
-        let url = URL(string: "\(server)/acknowledge_message_delivery")!
-        let request = TSRequest(url: url, method: "POST", parameters: parameters)
-        request.allHTTPHeaderFields = [ "Content-Type" : "application/json" ]
-        TSNetworkManager.shared().makeRequest(request, success: { _, response in
-            guard let json = response as? JSON else {
-                return print("[Loki] Couldn't acknowledge delivery for message with hash: \(hash).")
-            }
-            guard json["code"] as? Int != 0 else {
-                return print("[Loki] Couldn't acknowledge delivery for message with hash: \(hash) due to error: \(json["message"] as? String ?? "nil").")
-            }
-        }, failure: { _, error in
-            print("[Loki] Couldn't acknowledge delivery for message with hash: \(hash) due to error: \(error).")
-        })
-    }
 }