Fix generate config

lib/mix/tasks/generate_config.ex

@@ -9,12 +9,6 @@ def run(_) do
     name = IO.gets("What is the name of your instance? (e.g. Pleroma/Soykaf): ") |> String.trim()
     email = IO.gets("What's your admin email address: ") |> String.trim()
 
-    mediaproxy =
-      IO.gets("Do you want to activate the mediaproxy? (y/N): ")
-      |> String.trim()
-      |> String.downcase()
-      |> String.starts_with?("y")
-
     secret = :crypto.strong_rand_bytes(64) |> Base.encode64() |> binary_part(0, 64)
     dbpass = :crypto.strong_rand_bytes(64) |> Base.encode64() |> binary_part(0, 64)
 
@@ -27,8 +21,6 @@ def run(_) do
         email: email,
         name: name,
         secret: secret,
-        mediaproxy: mediaproxy,
-        proxy_url: proxy_url,
         dbpass: dbpass
       )