Revert "Add torch.utils to the docs page, remove dead code and fix docstrings (#105142)"
This reverts commit e985719e98ba02f61438d6a27e29caeaeedb9e6c.
Reverted https://github.com/pytorch/pytorch/pull/105142 on behalf of https://github.com/huydhn due to Sorry for reverting this but it is failing python doc build job in trunk https://hud.pytorch.org/pytorch/pytorch/commit/e985719e98ba02f61438d6a27e29caeaeedb9e6c ([comment](https://github.com/pytorch/pytorch/pull/105142#issuecomment-1644874540))
