[ONNX] Fix view for dynamic input shape (#43558)
Summary:
Export of view op with dynamic input shape is broken when using tensors with a 0-dim.
This fix removes symbolic use of static input size to fix this issue.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/43558
Reviewed By: ailzhang
Differential Revision: D23965090
Pulled By: bzinodev
fbshipit-source-id: 628e9d7ee5d53375f25052340ca6feabf7ba7c53
