Cleanup: remove private header

This header was copied in from MapLibre Native to expose a private
method.

Previously this got out of sync and caused a bug:
#53

Instead we can use the already public delegate method.

Note: The deleted header was importing Maplibre/Mapbox.h, but we are
using that elsewhere, so I moved that import up a level.

MapboxNavigation/NavigationMapView.swift

@@ -258,9 +258,7 @@ open class NavigationMapView: MLNMapView, UIGestureRecognizerDelegate {
         }
     }
 
-    override open func mapViewDidFinishRenderingFrameFullyRendered(_ fullyRendered: Bool, frameEncodingTime: Double, frameRenderingTime: Double) {
-        super.mapViewDidFinishRenderingFrameFullyRendered(fullyRendered, frameEncodingTime: frameEncodingTime, frameRenderingTime: frameRenderingTime)
-
+    func updateCourseTrackingAfterDidFinishRenderingFrame() {
         guard self.shouldPositionCourseViewFrameByFrame else { return }
         guard let location = userLocationForCourseTracking else { return }
 

MapboxNavigation/RouteMapViewController.swift

@@ -582,6 +582,10 @@ extension RouteMapViewController: NavigationViewDelegate {
         self.delegate?.mapViewDidFinishLoadingMap?(mapView)
     }
 
+    func mapViewDidFinishRenderingFrame(_ mapView: MLNMapView, fullyRendered: Bool) {
+        self.mapView.updateCourseTrackingAfterDidFinishRenderingFrame()
+    }
+
     // MARK: - VisualInstructionDelegate
 
     func label(_ label: InstructionLabel, willPresent instruction: VisualInstruction, as presented: NSAttributedString) -> NSAttributedString? {

MapboxNavigationObjc/include/MapboxNavigation.h

@@ -7,4 +7,4 @@ FOUNDATION_EXPORT double MapboxNavigationVersionNumber;
 FOUNDATION_EXPORT const unsigned char MapboxNavigationVersionString[];
 
 #import "../MBRouteVoiceController.h"
-#import "../MLNMapView+MLNNavigationAdditions.h"
+#import <MapLibre/Mapbox.h>