[quant] Remove prehook option (#46292)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/46292
since it is not needed
Test Plan: Imported from OSS
Reviewed By: raghuramank100
Differential Revision: D24290815
fbshipit-source-id: 5cc24a305dbdfee5de3419dc83a9c3794d949300
