remove unused code

MapboxNavigationTests/Sources/Support/Fixture.swift

@@ -5,36 +5,22 @@ import MapboxDirections
 import XCTest
 
 extension Fixture {
-    class func downloadRouteFixture(coordinates: [CLLocationCoordinate2D], fileName: String, completion: @escaping () -> Void) {
-        let accessToken = "<# Mapbox Access Token #>"
-        let directions = Directions(accessToken: accessToken)
-
-        let options = RouteOptions(coordinates: coordinates, profileIdentifier: .automobileAvoidingTraffic)
-        options.includesSteps = true
-        options.routeShapeResolution = .full
-        let filePath = (NSTemporaryDirectory() as NSString).appendingPathComponent(fileName)
-
-        _ = directions.calculate(options, completionHandler: { _, routes, _ in
-            guard let route = routes?.first else { return }
-
-            NSKeyedArchiver.archiveRootObject(route, toFile: filePath)
-            print("Route downloaded to \(filePath)")
-            completion()
-        })
-    }
-
     class var blankStyle: URL {
         let path = Bundle.module.path(forResource: "EmptyStyle", ofType: "json")
         return URL(fileURLWithPath: path!)
     }
-
+
+    class func routeWithBannerInstructions() -> Route {
+        route(from: "route-with-banner-instructions", bundle: .module, waypoints: [Waypoint(coordinate: CLLocationCoordinate2D(latitude: 37.795042, longitude: -122.413165)), Waypoint(coordinate: CLLocationCoordinate2D(latitude: 37.7727, longitude: -122.433378))])
+    }
+}
+
+// MARK: - Private
+
+private extension Fixture {
     class func route(from jsonFile: String, bundle: Bundle, waypoints: [Waypoint]) -> Route {
         let response = JSONFromFileNamed(name: jsonFile, bundle: bundle)
         let jsonRoute = (response["routes"] as! [AnyObject]).first as! [String: Any]
         return Route(json: jsonRoute, waypoints: waypoints, options: RouteOptions(waypoints: waypoints))
     }
-
-    class func routeWithBannerInstructions() -> Route {
-        route(from: "route-with-banner-instructions", bundle: .module, waypoints: [Waypoint(coordinate: CLLocationCoordinate2D(latitude: 37.795042, longitude: -122.413165)), Waypoint(coordinate: CLLocationCoordinate2D(latitude: 37.7727, longitude: -122.433378))])
-    }
 }