Remove a test that need reworking to be more predictable

It always passes locally and almost never in CI. We should consider
testing the key code path used to seed the database in more isolation.

(cherry picked from commit f2ab0b4)

Author: michaelklishin

test/clustering_management_SUITE.erl

@@ -53,8 +53,7 @@ groups() ->
               forget_offline_removes_things,
               force_boot,
               status_with_alarm,
-              wait_fails_when_cluster_fails,
-              concurrent_default_data_creation
+              wait_fails_when_cluster_fails
             ]},
           {cluster_size_4, [], [
               forget_promotes_offline_slave
@@ -637,29 +636,6 @@ wait_fails_when_cluster_fails(Config) ->
     {error, _, _} = rabbit_ct_broker_helpers:rabbitmqctl(Config, Rabbit,
       ["wait", RabbitPidFile]).
 
-concurrent_default_data_creation(Config) ->
-    [Rabbit, Hare] = rabbit_ct_broker_helpers:get_node_configs(Config,
-      nodename),
-    %% Run multiple times to detect a race.
-    %% This test simulates concurrent initialisation of several key node DB tables.
-    %% Since this is node-local state, in practice this can only
-    %% happen when a new cluster is formed and two nodes are booting
-    %% at roughly the same time (say, within a couple of ms from each other).
-    [concurrent_default_data_creation1(Rabbit, Hare) || _ <- lists:seq(1, 20)].
-
-concurrent_default_data_creation1(Rabbit, Hare) ->
-    %% Clear default data.
-    [{atomic, ok} = rpc:call(Rabbit, mnesia, clear_table, [Tab])
-     || Tab <- [rabbit_user, rabbit_user_permission, rabbit_vhost]],
-    %% Stop both nodes
-    [ok = rpc:call(Node, rabbit, stop, [])  || Node <- [Rabbit, Hare]],
-    %% Start nodes in parallel
-    [spawn(fun() -> rpc:call(Node, rabbit, start, []) end)
-     || Node <- [Rabbit, Hare]],
-    %% Verify both nodes are started successfully
-    [ok = rpc:call(Node, rabbit, await_startup, [Node]) || Node <- [Rabbit, Hare]],
-    [{ok, _Pid} = rpc:call(Node, rabbit_vhost_sup_sup, get_vhost_sup, [<<"/">>]) || Node <- [Rabbit, Hare]].
-
 %% ----------------------------------------------------------------------------
 %% Internal utils
 %% ----------------------------------------------------------------------------