GitLab

While migrating code to new mojo type it is noticed that files
versioning_apptest.cc and versioning_test_service.cc are not used by
any platform. This CL removes unwanted code from codebase.

Bug: 955171, 978694
Change-Id: Ifcbdb7d6bb4970ff960d31129cc0bd3dc159bf00
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1903244Reviewed-by: Ken Rockot <rockot@google.com>
Commit-Queue: Abhijeet Kandalkar <abhijeet@igalia.com>
Cr-Commit-Position: refs/heads/master@{#713498}