removed error messages from manual touch script (#667)

Author: doerrdude

sdkproject/Assets/MapboxAR/Scripts/Camera/ManualTouchCamera.cs

@@ -16,27 +16,21 @@ public class ManualTouchCamera : MonoBehaviour
 		[SerializeField]
 		Transform _mapHolder;
 
-		float speed = 1f;
-
 		Vector2?[] _oldTouchPositions = { null, null };
 
 		Vector2 _oldTouchVector;
 		Vector3 _delta;
 		float _oldTouchDistance;
-		Vector3 _origin;
 
 		bool _wasTouching;
 
-		bool _shouldDrag;
-
 		void Update()
 		{
 
 			if (Input.touchCount == 0)
 			{
 				_oldTouchPositions[0] = null;
 				_oldTouchPositions[1] = null;
-				_shouldDrag = false;
 
 			}
 			else if (Input.touchCount == 1)
@@ -47,11 +41,6 @@ void Update()
 					_oldTouchPositions[1] = null;
 				}
 
-				if (Input.GetTouch(0).phase == TouchPhase.Began)
-				{
-					_origin = Input.GetTouch(0).position;
-				}
-
 				if (Input.GetTouch(0).phase == TouchPhase.Moved)
 				{
 					var touchDelta = Input.GetTouch(0).deltaPosition;