[gnome-maps] mapView: Remove unused marker layer

[Marcus Lundblad <mlundblad src gnome org>]

commit 207b9e5070ab6da3a3a9463b21798fda717b2718
Author: Marcus Lundblad <ml dfupdate se>
Date:   Wed Jun 29 19:37:04 2022 +0200

    mapView: Remove unused marker layer
    
    Remove the _annotationMarkerLayer that
    is never used.

 src/mapView.js | 3 ---
 1 file changed, 3 deletions(-)
---
diff --git a/src/mapView.js b/src/mapView.js
index fc28dc50..5aa43155 100644
--- a/src/mapView.js
+++ b/src/mapView.js
@@ -231,9 +231,6 @@ export class MapView extends GtkChamplain.Embed {
         this._instructionMarkerLayer = new Champlain.MarkerLayer({ selection_mode: mode });
         this.view.add_layer(this._instructionMarkerLayer);
 
-        this._annotationMarkerLayer = new Champlain.MarkerLayer({ selection_mode: mode });
-        this.view.add_layer(this._annotationMarkerLayer);
-
         ShapeLayer.SUPPORTED_TYPES.push(GeoJSONShapeLayer);
         ShapeLayer.SUPPORTED_TYPES.push(KmlShapeLayer);
         ShapeLayer.SUPPORTED_TYPES.push(GpxShapeLayer);