RMQ-1263 CLI tools: replace Erlang files with Elixir

otherwise we end up with two copies of the compiled
module on the code path some of the time.

We don't need to mix Erlang and Elixir even
more to bring in one constant that hasn't changed
since its introduction some eight years ago.

(cherry picked from commit c32b948258f226a86be91cab80448d7a536afd7d)

Author: michaelklishin

deps/rabbitmq_cli/lib/rabbitmq/cli/core/users.ex

@@ -0,0 +1,20 @@
+## This Source Code Form is subject to the terms of the Mozilla Public
+## License, v. 2.0. If a copy of the MPL was not distributed with this
+## file, You can obtain one at https://mozilla.org/MPL/2.0/.
+##
+## Copyright (c) 2007-2025 Broadcom. All Rights Reserved. The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. All rights reserved.
+
+defmodule RabbitMQ.CLI.Core.Users do
+  # Defined here to not drag in rabbit.hrl and Erlang compilation in an Elixir
+  # sub-project
+  @internal_user "rmq-internal"
+  @cli_user "cli-user"
+
+  def internal_user do
+    @internal_user
+  end
+
+  def cli_user do
+    @cli_user
+  end
+end

deps/rabbitmq_cli/lib/rabbitmq/cli/ctl/commands/delete_queue_command.ex

@@ -5,7 +5,7 @@
 ## Copyright (c) 2007-2025 Broadcom. All Rights Reserved. The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.  All rights reserved.
 
 defmodule RabbitMQ.CLI.Ctl.Commands.DeleteQueueCommand do
-  alias RabbitMQ.CLI.Core.DocGuide
+  alias RabbitMQ.CLI.Core.{DocGuide, Users}
 
   @behaviour RabbitMQ.CLI.CommandBehaviour
 
@@ -51,7 +51,7 @@ defmodule RabbitMQ.CLI.Ctl.Commands.DeleteQueueCommand do
       }) do
     ## Generate queue resource name from queue name and vhost
     queue_resource = :rabbit_misc.r(vhost, :queue, qname)
-    user = if force, do: RabbitMQ.CLI.Common.internal_user, else: "cli_user"
+    user = if force, do: Users.internal_user, else: Users.cli_user
     ## Lookup a queue on broker node using resource name
     case :rabbit_misc.rpc_call(node, :rabbit_amqqueue, :lookup, [queue_resource]) do
       {:ok, queue} ->