Remove padding_mode from torch.nn.functional.conv{1,2,3}d's docstr (#20891)
Summary:
Fixes #20694
Pull Request resolved: https://github.com/pytorch/pytorch/pull/20891
Differential Revision: D15510790
Pulled By: soumith
fbshipit-source-id: aa3630693c7446bf18a390cb49c4df9bc9c59eea
