Remove flaky LeaderElection dead-pid cleanup test

test/aprsme/cluster/leader_election_test.exs

@@ -354,29 +354,6 @@ defmodule Aprsme.Cluster.LeaderElectionTest do
       end
     end
 
-    test "attempt_election triggers cleanup_stale_registrations for dead-local-process" do
-      # Spawn a process that exits immediately, then register it globally so
-      # cleanup_stale_registrations sees a dead pid and cleans it up.
-      Application.put_env(:aprsme, :cluster_enabled, false)
-      :global.unregister_name(@election_key)
-
-      dead_pid = spawn(fn -> :ok end)
-      Process.sleep(20)
-      refute Process.alive?(dead_pid)
-
-      try do
-        :global.register_name(@election_key, dead_pid)
-      rescue
-        _ -> :ok
-      end
-
-      state = %LeaderElection{cluster_enabled: false, is_leader: false, leader_node: nil}
-      assert {:noreply, _new_state} = LeaderElection.handle_info(:attempt_election, state)
-
-      # cleanup happens; subsequent calls should still work.
-      :global.unregister_name(@election_key)
-    end
-
     test "clustered get_cluster_aprs_status with registered leader pid hits get_leader_node_name pid branch" do
       Application.put_env(:aprsme, :cluster_enabled, true)