Remove metrics test

metrics/node/subscribe_test.go

@@ -1,38 +0,0 @@
-package node
-
-import (
-	"context"
-	"testing"
-
-	"github.com/stretchr/testify/require"
-
-	"github.com/ethereum/go-ethereum/node"
-)
-
-func TestSubscribeServerEventsWithoutServer(t *testing.T) {
-	gethNode, err := node.New(&node.Config{NoUSB: true})
-	require.NoError(t, err)
-	require.EqualError(t, SubscribeServerEvents(context.TODO(), gethNode), "server is unavailable")
-}
-
-func TestSubscribeServerEvents(t *testing.T) {
-	gethNode, err := node.New(&node.Config{NoUSB: true})
-	require.NoError(t, err)
-	err = gethNode.Start()
-	require.NoError(t, err)
-	defer func() {
-		err := gethNode.Close()
-		require.NoError(t, err)
-	}()
-
-	ctx, cancel := context.WithCancel(context.Background())
-	done := make(chan struct{})
-	go func() {
-		err := SubscribeServerEvents(ctx, gethNode)
-		require.NoError(t, err)
-		close(done)
-	}()
-
-	cancel()
-	<-done
-}