Refactoring ITEP / PTP Pruning Scuba Logger [3/N] (#3002)

Summary:
Pull Request resolved: #3002

refactor 3/n

Reviewed By: AKhazane

Differential Revision: D75108474

fbshipit-source-id: c4456ae2149960ba5fd0d9e143b9644b9d30fd19

Author: Jasper Shan