Revert "Custom mix task to retry failed tests once in CI pipeline"

This reverts commit ed2976b237.

.gitlab-ci.yml

@@ -133,7 +133,7 @@ unit-testing-1.13.4-otp-25:
   script: &testing_script
     - mix ecto.create
     - mix ecto.migrate
-    - mix pleroma.test_runner --cover --preload-modules
+    - mix test --cover --preload-modules
   coverage: '/^Line total: ([^ ]*%)$/'
   artifacts:
     reports:

lib/mix/tasks/pleroma/test_runner.ex

@@ -1,25 +0,0 @@
-defmodule Mix.Tasks.Pleroma.TestRunner do
-  @shortdoc "Retries tests once if they fail"
-
-  use Mix.Task
-
-  def run(args \\ []) do
-    case System.cmd("mix", ["test"] ++ args, into: IO.stream(:stdio, :line)) do
-      {_, 0} ->
-        :ok
-
-      _ ->
-        retry(args)
-    end
-  end
-
-  def retry(args) do
-    case System.cmd("mix", ["test", "--failed"] ++ args, into: IO.stream(:stdio, :line)) do
-      {_, 0} ->
-        :ok
-
-      _ ->
-        exit(1)
-    end
-  end
-end

test/mix/tasks/pleroma/uploads_test.exs

@@ -58,7 +58,7 @@ defmodule Mix.Tasks.Pleroma.UploadsTest do
     end
   end
 
-  defp prep_uploads() do
+  defp prep_uploads do
     upload_dir = Config.get([Pleroma.Uploaders.Local, :uploads])
 
     if not File.exists?(upload_dir) || File.ls!(upload_dir) == [] do