feat: removing unused code from clustering example

Author: Samo8

example/lib/pages/clustering.dart

@@ -234,93 +234,6 @@ class _ClusteringPageState extends ExamplePageState<ClusteringPage> {
     setState(() {});
   }
 
-  @override
-  Widget buildOverlayContent(BuildContext context) {
-    return Column(
-      mainAxisSize: MainAxisSize.min,
-      children: <Widget>[
-        Padding(
-          padding: const EdgeInsets.symmetric(horizontal: 8.0),
-          child: Column(
-            children: <Widget>[
-              Row(
-                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
-                children: <Widget>[
-                  Expanded(
-                    child: ElevatedButton(
-                      onPressed:
-                          _clusterManagers.length >= _clusterManagerMaxCount
-                              ? null
-                              : _addClusterManager,
-                      child: const Text('Add cluster manager'),
-                    ),
-                  ),
-                  const SizedBox(width: 8),
-                  Expanded(
-                    child: ElevatedButton(
-                      onPressed:
-                          _clusterManagers.isEmpty
-                              ? null
-                              : () => _removeClusterManager(
-                                _clusterManagers.values.last,
-                              ),
-                      child: const Text('Remove cluster manager'),
-                    ),
-                  ),
-                ],
-              ),
-              const SizedBox(height: 8),
-              Wrap(
-                alignment: WrapAlignment.spaceEvenly,
-                spacing: 8,
-                runSpacing: 8,
-                children: <Widget>[
-                  for (final MapEntry<String, ClusterManager> clusterEntry
-                      in _clusterManagers.entries)
-                    ElevatedButton(
-                      onPressed: () => _addMarkersToCluster(clusterEntry.value),
-                      child: Text('Add markers to ${clusterEntry.key}'),
-                    ),
-                ],
-              ),
-              const SizedBox(height: 8),
-              Row(
-                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
-                children: <Widget>[
-                  Expanded(
-                    child: ElevatedButton(
-                      onPressed:
-                          _selectedMarkerId == null
-                              ? null
-                              : _removeSelectedMarker,
-                      child: const Text('Remove selected marker'),
-                    ),
-                  ),
-                  const SizedBox(width: 8),
-                  Expanded(
-                    child: ElevatedButton(
-                      onPressed: _markers.isEmpty ? null : _changeMarkersAlpha,
-                      child: const Text('Change all markers alpha'),
-                    ),
-                  ),
-                ],
-              ),
-              if (_lastCluster != null)
-                Padding(
-                  padding: const EdgeInsets.all(10),
-                  child: Text(
-                    'Last cluster clicked:\n'
-                    '${_lastCluster!.count} markers at ${_lastCluster!.position}',
-                    textAlign: TextAlign.center,
-                  ),
-                ),
-            ],
-          ),
-        ),
-      ],
-    );
-  }
-
   @override
   Widget build(BuildContext context) {
     return Scaffold(