Redundent module

[RPFey]

Thank you for releasing your great work!

When I browse your code, I find that some module is defined but not used in the forward pass, for example: in here

self.kenc_2d = KeypointEncoder(
                        inp_dim=3,
                        feature_dim=hparams['descriptor_dim'],
                        layers=hparams['keypoints_encoder']
                    )

The module self.kenc_2d is defined here but it is not used in the forward pass. (I search this name in the whole project and only find one result. )

I suppose you want to use the position embedding but finally give up.

Why don't you use the position embedding module? Do you forget or this module harms the performance?