Remove old input metrics

Change-Id: Id766ad217d9b82e24db8db9fdc94202db21371fe
Reviewed-on: https://chromium-review.googlesource.com/c/1405490
Reviewed-by: Timothy Dresser <tdresser@chromium.org>
Reviewed-by: Steven Holte <holte@chromium.org>
Commit-Queue: Navid Zolghadr <nzolghadr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#623817}
4 files changed