[C++ API] Remove deprecated torch::nn::BatchNorm / FeatureDropout / modules_ordered_dict and torch::nn::init::Nonlinearity / FanMode (#34508)
Summary:
This PR is BC-breaking in the following way:
- The deprecated `torch::nn::BatchNorm` is removed in favor of `torch::nn::BatchNorm{1,2,3}d`
- The deprecated `torch::nn::FeatureDropout` is removed in favor of `torch::nn::Dropout{2,3}d`
- The deprecated `torch::nn::modules_ordered_dict` is removed. User should do `Sequential sequential({{"m1", MyModule(1)}, {"m2", MyModule(2)}})` instead.
- The deprecated `torch::nn::init::Nonlinearity` is removed, in favor of the following enums:
- `torch::kLinear`
- `torch::kConv1D`
- `torch::kConv2D`
- `torch::kConv3D`
- `torch::kConvTranspose1D`
- `torch::kConvTranspose2D`
- `torch::kConvTranspose3D`
- `torch::kSigmoid`
- `torch::kTanh`
- `torch::kReLU`
- `torch::kLeakyReLU`
- The deprecated `torch::nn::init::FanMode` is removed, in favor of the following enums:
- `torch::kFanIn`
- `torch::kFanOut`
Pull Request resolved: https://github.com/pytorch/pytorch/pull/34508
Differential Revision: D20351601
Pulled By: yf225
fbshipit-source-id: cca0cd112f29a31bb023e348ca8f82780e42bea3
