remove obsoletes

Core/mapbox-sdk-cs/Platform/Response.cs

@@ -257,7 +257,7 @@ namespace Mapbox.Platform
 
 			// additional string.empty check for apiResponse.error:
 			// on UWP isNetworkError is sometimes set to true despite all being well
-			if (apiResponse.isNetworkError && !string.IsNullOrEmpty(apiResponse.error))
+			if (apiResponse.result == UnityWebRequest.Result.ConnectionError && !string.IsNullOrEmpty(apiResponse.error))
 			{
 				response.AddException(new Exception(apiResponse.error));
 			}

Unity/Telemetry/TelemetryEditor.cs

@@ -85,7 +85,7 @@ namespace Mapbox.Unity.Telemetry
 
 			while (!postRequest.isDone) { yield return null; }
 
-			if (!postRequest.isNetworkError)
+			if (postRequest.result != UnityWebRequest.Result.ConnectionError)
 			{
 #else
 				var headers = new Dictionary<string, string>();

Unity/Utilities/MapVisualizerPerformance.cs

@@ -22,7 +22,7 @@
 		{
 			TotalTime = 0;
 			_currentTest = 1;
-			_map = FindObjectOfType<AbstractMap>();
+			_map = FindFirstObjectByType<AbstractMap>();
 			_mapVisualizer = _map.MapVisualizer;
 
 			_mapVisualizer.OnMapVisualizerStateChanged += (s) =>