Cleanup from comments on PR

* Removed unnecessary String from a OneSignal log
* Removed sendReceiveReceipt from handleReceivedNotification method

Author: mikechoch

iOS_SDK/OneSignalSDK/Source/OSNotificationPayload.m

@@ -187,7 +187,7 @@ -(void)parseOtherApnsFields {
 }
 
 - (NSString *)description {
-    return [NSString stringWithFormat: @"Photo: notificationID=%@ templateID=%@ templateName=%@ contentAvailable=%@ mutableContent=%@ category=%@ rawPayload=%@", _notificationID, _templateID, _templateName, _contentAvailable ? @"YES" : @"NO", _mutableContent ? @"YES" : @"NO", _category, _rawPayload];
+    return [NSString stringWithFormat: @"notificationID=%@ templateID=%@ templateName=%@ contentAvailable=%@ mutableContent=%@ category=%@ rawPayload=%@", _notificationID, _templateID, _templateName, _contentAvailable ? @"YES" : @"NO", _mutableContent ? @"YES" : @"NO", _category, _rawPayload];
 }
 
 @end

iOS_SDK/OneSignalSDK/Source/OneSignalHelper.m

@@ -421,10 +421,6 @@ + (void)handleNotificationReceived:(OSNotificationDisplayType)displayType fromBa
     [OneSignal onesignal_Log:ONE_S_LL_VERBOSE
                      message:[NSString stringWithFormat:@"handleNotificationReceived lastMessageID: %@ displayType: %lu",lastMessageID, (unsigned long)displayType]];
 
-    [OneSignal.receiveReceiptsController sendReceiveReceiptWithPlayerId:OneSignal.mUserId
-                                                         notificationId:lastMessageID
-                                                                  appId:OneSignal.app_id];
-
     if (handleNotificationReceived)
        handleNotificationReceived(notification);
 }

iOS_SDK/OneSignalSDK/Source/OneSignalReceiveReceiptsController.m

@@ -40,8 +40,15 @@ - (BOOL)isReceiveReceiptsEnabled {
 }
 
 - (void)sendReceiveReceiptWithNotificationId:(NSString *)notificationId {
-    let playerId = [OneSignalUserDefaults.initShared getSavedStringForKey:USERID defaultValue:nil];
-    let appId = [OneSignalUserDefaults.initShared getSavedStringForKey:NSUD_APP_ID defaultValue:nil];
+    let sharedUserDefaults = OneSignalUserDefaults.initShared;
+    let playerId = [sharedUserDefaults getSavedStringForKey:USERID defaultValue:nil];
+    let appId = [sharedUserDefaults getSavedStringForKey:NSUD_APP_ID defaultValue:nil];
+    
+    if (!playerId) {
+        let message = [NSString stringWithFormat:@"OneSignal sendReceiveReceiptWithNotificationId notificationId: %@ failed with null playerId", notificationId];
+        [OneSignal onesignal_Log:ONE_S_LL_VERBOSE message:message];
+        return;
+    }
 
     [self sendReceiveReceiptWithPlayerId:playerId
                           notificationId:notificationId