build: unset build ID in generated binaries (#10203)

build.go

@@ -901,6 +901,7 @@ func weblate() {
 func ldflags(tags []string) string {
 	b := new(strings.Builder)
 	b.WriteString("-w")
+	b.WriteString(" -buildid=")
 	fmt.Fprintf(b, " -X github.com/syncthing/syncthing/lib/build.Version=%s", version)
 	fmt.Fprintf(b, " -X github.com/syncthing/syncthing/lib/build.Stamp=%d", buildStamp())
 	fmt.Fprintf(b, " -X github.com/syncthing/syncthing/lib/build.User=%s", buildUser())