[quant][fx] Remove additional_object_mapping from the docs (#75389)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/75389
This seems to be removed before, so won't mark this PR as bc-breaking, this use case
is now enabled with backend_config_dict api
Test Plan:
python test/test_quantization.py TestQuantizeFx
python test/test_quantization.py TestQuantizeFxOps
Imported from OSS
Reviewed By: vkuzo
Differential Revision: D35451960
fbshipit-source-id: 21a8f19c1968af44bf4fa603f16ee8c6f5080e5a
(cherry picked from commit 2862f17b57f846b55736bc6b5d10df4256567adf)
