Revert "feat: add version checking to CLI"

[coadler]

Reverts #2643

Dev is currently down

Jun 29 02:02:02 coder systemd[1]: Starting "Coder - Self-hosted developer workspaces on your infra"...
Jun 29 02:02:02 coder coder[30940]: build info: do: Get "https://127.0.0.1:8443/api/v2/buildinfo": dial tcp 127.0.0.1:8443: connect: connection refused
Jun 29 02:02:02 coder coder[30940]: Run 'coder server --help' for usage.
Jun 29 02:02:02 coder systemd[1]: coder.service: Main process exited, code=exited, status=1/FAILURE
Jun 29 02:02:02 coder systemd[1]: coder.service: Failed with result 'exit-code'.
Jun 29 02:02:02 coder systemd[1]: Failed to start "Coder - Self-hosted developer workspaces on your infra".