cmd/tailscale, cmd/tailscaled: move portmapper debugging into tailscale CLI

The debug flag on tailscaled isn't available in the macOS App Store
build, since we don't have a tailscaled binary; move it to the
'tailscale debug' CLI that is available on all platforms instead,
accessed over LocalAPI.

Updates #7377

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I47bffe4461e036fab577c2e51e173f4003592ff7

tstest/integration/tailscaled_deps_test_darwin.go

@@ -25,7 +25,6 @@ import (
 	_ "tailscale.com/net/dnsfallback"
 	_ "tailscale.com/net/interfaces"
 	_ "tailscale.com/net/netns"
-	_ "tailscale.com/net/portmapper"
 	_ "tailscale.com/net/proxymux"
 	_ "tailscale.com/net/socks5"
 	_ "tailscale.com/net/tsdial"

tstest/integration/tailscaled_deps_test_freebsd.go

@@ -25,7 +25,6 @@ import (
 	_ "tailscale.com/net/dnsfallback"
 	_ "tailscale.com/net/interfaces"
 	_ "tailscale.com/net/netns"
-	_ "tailscale.com/net/portmapper"
 	_ "tailscale.com/net/proxymux"
 	_ "tailscale.com/net/socks5"
 	_ "tailscale.com/net/tsdial"

tstest/integration/tailscaled_deps_test_linux.go

@@ -25,7 +25,6 @@ import (
 	_ "tailscale.com/net/dnsfallback"
 	_ "tailscale.com/net/interfaces"
 	_ "tailscale.com/net/netns"
-	_ "tailscale.com/net/portmapper"
 	_ "tailscale.com/net/proxymux"
 	_ "tailscale.com/net/socks5"
 	_ "tailscale.com/net/tsdial"

tstest/integration/tailscaled_deps_test_openbsd.go

@@ -25,7 +25,6 @@ import (
 	_ "tailscale.com/net/dnsfallback"
 	_ "tailscale.com/net/interfaces"
 	_ "tailscale.com/net/netns"
-	_ "tailscale.com/net/portmapper"
 	_ "tailscale.com/net/proxymux"
 	_ "tailscale.com/net/socks5"
 	_ "tailscale.com/net/tsdial"

tstest/integration/tailscaled_deps_test_windows.go

@@ -33,7 +33,6 @@ import (
 	_ "tailscale.com/net/dnsfallback"
 	_ "tailscale.com/net/interfaces"
 	_ "tailscale.com/net/netns"
-	_ "tailscale.com/net/portmapper"
 	_ "tailscale.com/net/proxymux"
 	_ "tailscale.com/net/socks5"
 	_ "tailscale.com/net/tsdial"