Misc. FakeLowP OSS cleanup (#44331)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/44331
[10:22 AM] Cherckez, Tal
summary of issues(just to have a clear list):
* std::clamp forces the user to use c++17
* using setting without given fails the test
* avoid using max_examples for tests
(Note: this ignores all push blocking failures!)
Test Plan: https://www.internalfb.com/intern/testinfra/testconsole/testrun/6192449509073222/
Reviewed By: hyuen
Differential Revision: D23581440
fbshipit-source-id: fe9fbc341f8fca02352f531cc622fc1035d0300c
