[quant][core][improvements] Removed reflection_pad1d_quantized_cpu, dimension and output resizing code in reflection_pad1d_out_template and implemented reflection_pad1d_out_quantized_cpu (#74755)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/74755
With the introduction of structured kernel support for quantized tensors in
https://github.com/pytorch/pytorch/pull/74560, we are able to remove the dimension and output
resizing code in reflection_pad1d_out_template. This code is already present in reflection_pad1d.
reflection_pad1d_quantized_cpu has also been removed as quantized tensors can now use reflection_pad1d
after the changes in the linked PR.
reflection_pad1d_out_quantized_cpu was implemented for quantized tensors.
This PR should introduce no functional changes.
Test Plan:
```
python run_test.py
```
```
python run_test.py
```
Differential Revision:
D35148152
D35148152
Reviewed By: mruberry
Pulled By: dzdang
fbshipit-source-id: aa41e0704655f9b97ca6032159662ea86609a964
(cherry picked from commit e00c04eb889eb2c6747ee3bcc0f75b91f19be1f3)
