refactor: remove some unnecessary code for legacy PN registration

libsession/src/main/java/org/session/libsession/messaging/sending_receiving/notifications/PushNotificationAPI.kt

@@ -61,27 +61,6 @@ object PushNotificationAPI {
     }
 
     fun register(token: String, publicKey: String, force: Boolean) {
-        val oldToken = TextSecurePreferences.getFCMToken(context)
-        val lastUploadDate = TextSecurePreferences.getLastFCMUploadTime(context)
-        if (!force && token == oldToken && System.currentTimeMillis() - lastUploadDate < tokenExpirationInterval) { return }
-        val parameters = mapOf( "token" to token, "pubKey" to publicKey )
-        val url = "$server/register"
-        val body = RequestBody.create(MediaType.get("application/json"), JsonUtil.toJson(parameters))
-        val request = Request.Builder().url(url).post(body)
-        retryIfNeeded(maxRetryCount) {
-            OnionRequestAPI.sendOnionRequest(request.build(), server, serverPublicKey, Version.V2).map { response ->
-                val code = response.info["code"] as? Int
-                if (code != null && code != 0) {
-                    TextSecurePreferences.setIsUsingFCM(context, true)
-                    TextSecurePreferences.setFCMToken(context, token)
-                    TextSecurePreferences.setLastFCMUploadTime(context, System.currentTimeMillis())
-                } else {
-                    Log.d("Loki", "Couldn't register for FCM due to error: ${response.info["message"] as? String ?: "null"}.")
-                }
-            }.fail { exception ->
-                Log.d("Loki", "Couldn't register for FCM due to error: ${exception}.")
-            }
-        }
         // Subscribe to all closed groups
         val allClosedGroupPublicKeys = MessagingModuleConfiguration.shared.storage.getAllClosedGroupPublicKeys()
         allClosedGroupPublicKeys.iterator().forEach { closedGroup ->
@@ -92,7 +71,7 @@ object PushNotificationAPI {
     fun performOperation(operation: ClosedGroupOperation, closedGroupPublicKey: String, publicKey: String) {
         if (!TextSecurePreferences.isUsingFCM(context)) { return }
         val parameters = mapOf( "closedGroupPublicKey" to closedGroupPublicKey, "pubKey" to publicKey )
-        val url = "$server/${operation.rawValue}"
+        val url = "$legacyServer/${operation.rawValue}"
         val body = RequestBody.create(MediaType.get("application/json"), JsonUtil.toJson(parameters))
         val request = Request.Builder().url(url).post(body)
         retryIfNeeded(maxRetryCount) {