util/eventbus: also disable websocket debug on Android

So tsnet-on-Android is smaller, like iOS.

Updates #12614
Updates #15297

Change-Id: I97ae997f5d17576024470fe5fea93d9f5f134bde
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>

util/eventbus/debughttp.go

@@ -1,7 +1,7 @@
 // Copyright (c) Tailscale Inc & AUTHORS
 // SPDX-License-Identifier: BSD-3-Clause
 
-//go:build !ios
+//go:build !ios && !android
 
 package eventbus
 

util/eventbus/debughttp_off.go

@@ -1,7 +1,7 @@
 // Copyright (c) Tailscale Inc & AUTHORS
 // SPDX-License-Identifier: BSD-3-Clause
 
-//go:build ios
+//go:build ios || android
 
 package eventbus
 
@@ -12,6 +12,8 @@ func registerHTTPDebugger(d *Debugger, td *tsweb.DebugHandler) {
 	// reflection for method lookups. This forces the compiler to
 	// retain a lot more code and information to make dynamic method
 	// dispatch work, which is unacceptable bloat for the iOS build.
+	// We also disable it on Android while we're at it, as nobody
+	// is debugging Tailscale internals on Android.
 	//
 	// TODO: https://github.com/tailscale/tailscale/issues/15297 to
 	// bring the debug UI back to iOS somehow.