Cleanup depulicated code of Cython ID types (#4162)

python/ray/_raylet.pyx

@@ -79,7 +79,7 @@ cdef c_vector[CObjectID] ObjectIDsToVector(object_ids):
 cdef VectorToObjectIDs(c_vector[CObjectID] object_ids):
     result = []
     for i in range(object_ids.size()):
-        result.append(ObjectID.from_native(object_ids[i]))
+        result.append(ObjectID(object_ids[i].binary()))
     return result
 
 
@@ -87,11 +87,11 @@ def compute_put_id(TaskID task_id, int64_t put_index):
     if put_index < 1 or put_index > kMaxTaskPuts:
         raise ValueError("The range of 'put_index' should be [1, %d]"
                          % kMaxTaskPuts)
-    return ObjectID.from_native(ComputePutId(task_id.data, put_index))
+    return ObjectID(ComputePutId(task_id.data, put_index).binary())
 
 
 def compute_task_id(ObjectID object_id):
-    return TaskID.from_native(ComputeTaskId(object_id.data))
+    return TaskID(ComputeTaskId(object_id.data).binary())
 
 
 cdef c_bool is_simple_value(value, int *num_elements_contained):
@@ -354,7 +354,7 @@ cdef class RayletClient:
         cdef CActorCheckpointID checkpoint_id
         check_status(self.client.get().PrepareActorCheckpoint(
             actor_id.data, checkpoint_id))
-        return ActorCheckpointID.from_native(checkpoint_id)
+        return ActorCheckpointID(checkpoint_id.binary())
 
     def notify_actor_resumed_from_checkpoint(self, ActorID actor_id,
                                              ActorCheckpointID checkpoint_id):
@@ -367,11 +367,11 @@ cdef class RayletClient:
 
     @property
     def client_id(self):
-        return ClientID.from_native(self.client.get().GetClientID())
+        return ClientID(self.client.get().GetClientID().binary())
 
     @property
     def driver_id(self):
-        return DriverID.from_native(self.client.get().GetDriverID())
+        return DriverID(self.client.get().GetDriverID().binary())
 
     @property
     def is_worker(self):