[jit] Remove unnecessary clone APIs for script::Module and RecursiveScriptModule (#40297) (#40748)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/40297
Test Plan: Imported from OSS
Differential Revision: D22191660
fbshipit-source-id: 4b338ca82caaca04784bffe01fdae3d180c192f4
