Remove unimplemented onload event

Signed-off-by: martinRenou <[email protected]>

Author: martinRenou

ipyleaflet/leaflet.py

@@ -401,13 +401,6 @@ def __init__(self, **kwargs):
         super(VectorTileLayer, self).__init__(**kwargs)
         self.on_msg(self._handle_leaflet_event)
 
-    def _handle_leaflet_event(self, _, content, buffers):
-        if content.get('event', '') == 'load':
-            self._load_callbacks(**content)
-
-    def on_load(self, callback, remove=False):
-        self._load_callbacks.register_callback(callback, remove=remove)
-
     def redraw(self):
         self.send({'msg': 'redraw'})