GitLab

Remove orphan file legacy_navigation_manager_impl.mm

LegacyNavigationManagerImpl is deprecated and should be removed.

Bug: 1029306
Change-Id: I15ecaba4b21d49f5c2b60945d27aeb774cf823b7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1959030Reviewed-by: Eugene But <eugenebut@chromium.org>
Commit-Queue: Yi Su <mrsuyi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#723495}