all: cleanup unused code, part 2 (#10670)

And enable U1000 check in staticcheck.

Updates #cleanup

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>

cmd/tailscale/cli/serve_v2.go

@@ -93,14 +93,6 @@ var infoMap = map[serveMode]commandInfo{
 	},
 }
 
-func buildShortUsage(subcmd string) string {
-	return strings.Join([]string{
-		subcmd + " [flags] <target> [off]",
-		subcmd + " status [--json]",
-		subcmd + " reset",
-	}, "\n  ")
-}
-
 // errHelpFunc is standard error text that prompts users to
 // run `$subcmd --help` for information on how to use serve.
 var errHelpFunc = func(m serveMode) error {

cmd/tailscale/cli/serve_v2_test.go

@@ -27,7 +27,6 @@ func TestServeDevConfigMutations(t *testing.T) {
 		command []string                       // serve args; nil means no command to run (only reset)
 		want    *ipn.ServeConfig               // non-nil means we want a save of this value
 		wantErr func(error) (badErrMsg string) // nil means no error is wanted
-		before  func(t *testing.T)
 	}
 
 	// group is a group of steps that share the same
@@ -1224,14 +1223,6 @@ func TestMessageForPort(t *testing.T) {
 	}
 }
 
-func unindent(s string) string {
-	lines := strings.Split(s, "\n")
-	for i, line := range lines {
-		lines[i] = strings.TrimSpace(line)
-	}
-	return strings.Join(lines, "\n")
-}
-
 func TestIsLegacyInvocation(t *testing.T) {
 	tests := []struct {
 		subcmd      serveMode

cmd/tailscale/cli/up.go

@@ -1044,18 +1044,6 @@ func exitNodeIP(p *ipn.Prefs, st *ipnstate.Status) (ip netip.Addr) {
 	return
 }
 
-func anyPeerAdvertisingRoutes(st *ipnstate.Status) bool {
-	for _, ps := range st.Peer {
-		if ps.PrimaryRoutes == nil {
-			continue
-		}
-		if ps.PrimaryRoutes.Len() > 0 {
-			return true
-		}
-	}
-	return false
-}
-
 func init() {
 	// Required to use our client API. We're fine with the instability since the
 	// client lives in the same repo as this code.