Fix dio_edgev2 return

lib/json.ex

@@ -12,7 +12,7 @@ defmodule Json do
   end
 
   defp conv_validate(conv) do
-    Keyword.merge([all_hex: false], conv)
+    conv
   end
 
   def decode!(binary) do
@@ -61,8 +61,8 @@ defmodule Json do
     "0x"
   end
 
-  defp do_encode(bin, conv) when is_binary(bin) do
-    if conv[:all_hex] == false and String.printable?(bin) do
+  defp do_encode(bin, _conv) when is_binary(bin) do
+    if String.printable?(bin) do
       bin
     else
       Base16.encode(bin, false)

lib/network/rpc.ex

@@ -88,7 +88,7 @@ defmodule Network.Rpc do
     envelope =
       %{"id" => {:raw, id}, "jsonrpc" => "2.0"}
       |> Map.merge(ret)
-      |> Json.prepare!(all_hex: method == "dio_edgev2")
+      |> Json.prepare!()
 
     {code, envelope}
   end

test/rpc_test.exs

@@ -108,7 +108,7 @@ defmodule RpcTest do
               "id" => 1,
               "jsonrpc" => "2.0",
               "result" => %{
-                "blockNumber" => blockNum,
+                "blockNumber" => _blockNum,
                 "contractAddress" => nil,
                 "cumulativeGasUsed" => _variable,
                 "from" => ^from,