pytorch

1c5e48bb - Observer returns original tensor for post training quantization (#24196)

Observer returns original tensor for post training quantization (#24196) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/24196 Observer returns output with no changes for post training quant. This unifies observer semantics for QAT and PTQ. ghstack-source-id: 88140887 Differential Revision: D16768277 fbshipit-source-id: fae7c94e3dc0eeda363e9982b3865a15113e11bd