test: remove extraneous :instances_favicons config bits

config/test.exs

@@ -114,8 +114,6 @@ config :pleroma, Pleroma.Plugs.RemoteIp, enabled: false
 
 config :pleroma, Pleroma.Web.ApiSpec.CastAndValidate, strict: true
 
-config :pleroma, :instances_favicons, enabled: false
-
 config :pleroma, Pleroma.Uploaders.S3,
   bucket: nil,
   streaming_enabled: true,

test/web/instances/instance_test.exs

@@ -112,8 +112,6 @@ defmodule Pleroma.Instances.InstanceTest do
   end
 
   test "Returns nil on too long favicon URLs" do
-    clear_config([:instances_favicons, :enabled], true)
-
     long_favicon_url =
       "https://Lorem.ipsum.dolor.sit.amet/consecteturadipiscingelit/Praesentpharetrapurusutaliquamtempus/Mauriseulaoreetarcu/atfacilisisorci/Nullamporttitor/nequesedfeugiatmollis/dolormagnaefficiturlorem/nonpretiumsapienorcieurisus/Nullamveleratsem/Maecenassedaccumsanexnam/favicon.png"