[Credo] Remove parentesis on argument-less functions

lib/pleroma/application.ex

@@ -11,10 +11,10 @@ defmodule Pleroma.Application do
   @repository Mix.Project.config()[:source_url]
   def name, do: @name
   def version, do: @version
-  def named_version(), do: @name <> " " <> @version
+  def named_version, do: @name <> " " <> @version
   def repository, do: @repository
 
-  def user_agent() do
+  def user_agent do
     info = "#{Pleroma.Web.base_url()} <#{Pleroma.Config.get([:instance, :email], "")}>"
     named_version() <> "; " <> info
   end
@@ -127,7 +127,7 @@ defmodule Pleroma.Application do
     Supervisor.start_link(children, opts)
   end
 
-  def enabled_hackney_pools() do
+  def enabled_hackney_pools do
     [:media] ++
       if Application.get_env(:tesla, :adapter) == Tesla.Adapter.Hackney do
         [:federation]
@@ -142,14 +142,14 @@ defmodule Pleroma.Application do
   end
 
   if Mix.env() == :test do
-    defp streamer_child(), do: []
-    defp chat_child(), do: []
+    defp streamer_child, do: []
+    defp chat_child, do: []
   else
-    defp streamer_child() do
+    defp streamer_child do
       [worker(Pleroma.Web.Streamer, [])]
     end
 
-    defp chat_child() do
+    defp chat_child do
       if Pleroma.Config.get([:chat, :enabled]) do
         [worker(Pleroma.Web.ChatChannel.ChatChannelState, [])]
       else
@@ -158,7 +158,7 @@ defmodule Pleroma.Application do
     end
   end
 
-  defp hackney_pool_children() do
+  defp hackney_pool_children do
     for pool <- enabled_hackney_pools() do
       options = Pleroma.Config.get([:hackney_pools, pool])
       :hackney_pool.child_spec(pool, options)