Fix compiler warnings in tests

Author: dmorn

lib/moqx/codec.ex

@@ -99,7 +99,7 @@ defmodule MOQX.Codec do
   end
 
   defp decode_sized_bytes(data, length) when byte_size(data) >= length do
-    <<value::binary-size(length), rest::binary>> = data
+    <<value::binary-size(^length), rest::binary>> = data
     {:ok, value, rest}
   end
 

lib/moqx/moq_lite_04/stream_codec.ex

@@ -223,7 +223,7 @@ defmodule MOQX.MOQLite04.StreamCodec do
 
   defp decode_message_payload(codec, original_buffer, payload_buffer, length, decoder)
        when byte_size(payload_buffer) >= length do
-    <<payload::binary-size(length), rest::binary>> = payload_buffer
+    <<payload::binary-size(^length), rest::binary>> = payload_buffer
 
     case decoder.decode(payload, %{}) do
       {:ok, message} ->

test/support/transport_contract.ex

@@ -706,7 +706,6 @@ defmodule MOQX.TransportContract.QuicerReferenceServerFixture do
        }}
     else
       {:error, reason, _ctx} -> {:error, reason}
-      {:error, reason} -> {:error, reason}
     end
   end