refactor save_keyword_policy and list_keyword_policy to be just save and list as they are already under KeywordPolicy module

lib/pleroma/web/activity_pub/mrf/keyword_policy.ex

@@ -79,7 +79,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.KeywordPolicy do
      |> put_in(["object", "summary"], summary)}
   end
 
-  def save_keyword_policy(%{
+  def save(%{
         federated_timeline_removal: ftr,
         reject: reject,
         replace: replace
@@ -100,7 +100,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.KeywordPolicy do
     end
   end
 
-  def list_keyword_policy do
+  def list do
     config = Pleroma.Config.get(:mrf_keyword, %{})
 
     Enum.reduce(config, %{}, fn {key, value}, acc ->

lib/pleroma/web/admin_api/admin_api_controller.ex

@@ -243,7 +243,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
 
   @doc "List this instance's keyword policy"
   def list_keyword_policy(conn, _params) do
-    mrf_keyword = KeywordPolicy.list_keyword_policy()
+    mrf_keyword = KeywordPolicy.list()
 
     conn
     |> put_status(200)
@@ -255,7 +255,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
     result =
       policy
       |> Poison.decode!(keys: :atoms!)
-      |> KeywordPolicy.save_keyword_policy()
+      |> KeywordPolicy.save()
 
     case result do
       :ok ->
@@ -272,7 +272,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
 
   @doc "Reset the keyword policy"
   def reset_keyword_policy(conn, _params) do
-    KeywordPolicy.save_keyword_policy(%{
+    KeywordPolicy.save(%{
       federated_timeline_removal: [],
       reject: [],
       replace: %{}

lib/pleroma/web/nodeinfo/nodeinfo_controller.ex

@@ -45,7 +45,7 @@ defmodule Pleroma.Web.Nodeinfo.NodeinfoController do
       Application.get_env(:pleroma, :mrf_simple)
       |> Enum.into(%{})
 
-    mrf_keyword = KeywordPolicy.list_keyword_policy()
+    mrf_keyword = KeywordPolicy.list()
 
     mrf_policies =
       MRF.get_policies()

test/web/activity_pub/mrf/keyword_policy_test.exs

@@ -14,13 +14,13 @@ defmodule Pleroma.Web.ActivityPub.MRF.KeywordPolicyTest do
   describe "managing keyword policies" do
     test "save a new valid keyword policy" do
       config = Pleroma.Config.get(:mrf_keyword)
-      result = KeywordPolicy.save_keyword_policy(%{config | replace: %{"toot" => "jort"}})
+      result = KeywordPolicy.save(%{config | replace: %{"toot" => "jort"}})
       assert result == :ok
     end
 
     test "save a new invalid keyword policy" do
       config = Pleroma.Config.get(:mrf_keyword)
-      result = KeywordPolicy.save_keyword_policy(%{config | replace: %{3 => "jort"}})
+      result = KeywordPolicy.save(%{config | replace: %{3 => "jort"}})
       assert {:error, _} = result
     end
   end