Refactor the fix

Author: azarovalex

Sources/MapboxNavigation/NavigationMapView+CLLocationManagerDelegate.swift

@@ -6,17 +6,14 @@ extension NavigationMapView: CLLocationManagerDelegate {
         if !_locationChangesAllowed { return }
         authorizationStatus = status
     }
-    
+
+    @available(iOS 14.0, *)
     public func locationManagerDidChangeAuthorization(_ manager: CLLocationManager) {
         // In case if location changes are not allowed - do not update authorization status and
         // accuracy authorization. Used for testing.
         if !_locationChangesAllowed { return }
-        
-        if #available(iOS 14.0, *) {
-            authorizationStatus = manager.authorizationStatus
-            accuracyAuthorization = manager.accuracyAuthorization
-        } else {
-            authorizationStatus = CLLocationManager.authorizationStatus()
-        }
+
+        authorizationStatus = manager.authorizationStatus
+        accuracyAuthorization = manager.accuracyAuthorization
     }
 }