Updated patch to remove unusable fields

Author: androidseb

packages/google_maps_flutter/google_maps_flutter/lib/src/google_map.dart

@@ -120,10 +120,11 @@ class GoogleMap extends StatefulWidget {
     this.indoorViewEnabled = false,
     this.trafficEnabled = false,
     this.buildingsEnabled = true,
-    this.markers = const <Marker>{},
-    this.polygons = const <Polygon>{},
-    this.polylines = const <Polyline>{},
-    this.circles = const <Circle>{},
+    // MOD imperative map updates (commented the lines below)
+    // this.markers = const <Marker>{},
+    // this.polygons = const <Polygon>{},
+    // this.polylines = const <Polyline>{},
+    // this.circles = const <Circle>{},
     this.clusterManagers = const <ClusterManager>{},
     this.heatmaps = const <Heatmap>{},
     this.onCameraMoveStarted,
@@ -134,7 +135,15 @@ class GoogleMap extends StatefulWidget {
     this.onTap,
     this.onLongPress,
     this.cloudMapId,
+  // MOD imperative map updates - replaced this:
+  /*
   });
+  *//* with that: */
+  }) : this.markers = const <Marker>{},
+       this.polygons = const <Polygon>{},
+       this.polylines = const <Polyline>{},
+       this.circles = const <Circle>{};
+  // End of replacement
 
   /// Callback method for when the map is ready to be used.
   ///
@@ -460,11 +469,10 @@ class _GoogleMapState extends State<GoogleMap> {
 
     _updateOptions(controller);
     _updateClusterManagers(controller);
-    // MOD imperative map updates (commented the lines below)
-    //_updateMarkers(controller);
-    //_updatePolygons(controller);
-    //_updatePolylines(controller);
-    //_updateCircles(controller);
+    _updateMarkers(controller);
+    _updatePolygons(controller);
+    _updatePolylines(controller);
+    _updateCircles(controller);
     _updateHeatmaps(controller);
     _updateTileOverlays(controller);
     _updateGroundOverlays(controller);