removing unused method

lib/pleroma/http/request_builder.ex

@@ -49,26 +49,6 @@ def headers(request, headers) do
   @spec opts(Request.t(), keyword()) :: Request.t()
   def opts(request, options), do: %{request | opts: options}
 
-  # NOTE: isn't used anywhere
-  @doc """
-  Add optional parameters to the request
-
-  """
-  @spec add_optional_params(Request.t(), %{optional(atom) => atom}, keyword()) :: map()
-  def add_optional_params(request, _, []), do: request
-
-  def add_optional_params(request, definitions, [{key, value} | tail]) do
-    case definitions do
-      %{^key => location} ->
-        request
-        |> add_param(location, key, value)
-        |> add_optional_params(definitions, tail)
-
-      _ ->
-        add_optional_params(request, definitions, tail)
-    end
-  end
-
   @doc """
   Add optional parameters to the request
   """

test/http/request_builder_test.exs

@@ -36,23 +36,6 @@ test "send custom user agent" do
     end
   end
 
-  describe "add_optional_params/3" do
-    test "don't add if keyword is empty" do
-      assert RequestBuilder.add_optional_params(%{}, %{}, []) == %{}
-    end
-
-    test "add query parameter" do
-      assert RequestBuilder.add_optional_params(
-               %Request{},
-               %{query: :query, body: :body, another: :val},
-               [
-                 {:query, "param1=val1&param2=val2"},
-                 {:body, "some body"}
-               ]
-             ) == %Request{query: "param1=val1&param2=val2", body: "some body"}
-    end
-  end
-
   describe "add_param/4" do
     test "add file parameter" do
       %Request{