Remove test/vti/test_serving code, no longer used

This project was removed from the manifest in Dec'21 with aosp/1920522

This change will ensure that automated code scanners aren't reporting
issues on it.

Bug: 253296312
Change-Id: If2722726f5c90fb84602f2e89ceb171ed1e4e255
187 files changed
tree: 4fc217bb24aa0780c67f70b2bf2c814009badf64
  1. .gitignore