chore: systematic syncthing_build_info metric

Signed-off-by: Jakob Borg <jakob@kastelo.net>

cmd/stdiscosrv/main.go

@@ -14,7 +14,6 @@ import (
 	"net/http"
 	"os"
 	"os/signal"
-	"runtime"
 	"time"
 
 	"github.com/alecthomas/kong"
@@ -96,8 +95,6 @@ func main() {
 	}
 	slog.Info(build.LongVersionFor("stdiscosrv"))
 
-	buildInfo.WithLabelValues(build.Version, runtime.Version(), build.User, build.Date.UTC().Format("2006-01-02T15:04:05Z")).Set(1)
-
 	var cert tls.Certificate
 	if !cli.HTTP {
 		var err error