Use meson's vcs_tag(), but not for network requests
I just learned about meson's vcs_tag() function. We can use this to get rid of our compute-tech-preview-version.sh script. In implementing this, I discovered that we're sending the git hash along to the sync server and safe browsing server. Let's not do that. Only use the VCS version when displaying things locally, not in network requests.
Showing with 25 additions and 23 deletions