[quant][refactor tests] Move qtensor serialization tests from test_deprecated_jit (#59089)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/59089
Move these tests into test_quantized_tensor
Test Plan:
python test/test_quantization.py
Imported from OSS
Reviewed By: jerryzh168
Differential Revision: D28750065
fbshipit-source-id: 5c4350d49dd07710b86ba330de80369403c6013c
