Remove the useless remote.getObject API.

browser/atom/objects-registry.coffee

@@ -6,7 +6,7 @@ class ObjectsStore
   @stores = {}
 
   constructor: ->
-    @nextId = 1
+    @nextId = 0
     @objects = []
 
   getNextId: ->
@@ -48,13 +48,7 @@ objectsWeakMap.add = (obj) ->
 windowsWeakMap = new IDWeakMap
 
 process.on 'ATOM_BROWSER_INTERNAL_NEW', (obj) ->
-  # It's possible that user created a object in browser side and then want to
-  # get it in renderer via remote.getObject. So we must add every native object
-  # created in browser to the weak map even it may not be referenced by the
-  # renderer.
-  objectsWeakMap.add obj
-
-  # Also remember all windows.
+  # Remember all windows.
   if obj.constructor is BrowserWindow
     id = windowsWeakMap.add obj
     obj.on 'destroyed', ->