playground: Stop using GetLogger and use vlog directly instead.

Change-Id: Id9aa9d49f05d7b793c528d16ecd922442e7b5e88
diff --git a/client/bundles/fortune/ex0-go/src/server/server.go b/client/bundles/fortune/ex0-go/src/server/server.go
index 54c24bd..60e5ef3 100644
--- a/client/bundles/fortune/ex0-go/src/server/server.go
+++ b/client/bundles/fortune/ex0-go/src/server/server.go
@@ -12,6 +12,7 @@
 	vflag "v.io/core/veyron/security/flag"
 	"v.io/core/veyron2"
 	"v.io/core/veyron2/ipc"
+	"v.io/core/veyron2/vlog"
 
 	"fortune"
 )
@@ -52,12 +53,11 @@
 	// Initialize Vanadium.
 	ctx, shutdown := veyron2.Init()
 	defer shutdown()
-	log := veyron2.GetLogger(ctx)
 
 	// Create a new instance of the runtime's server functionality.
 	server, err := veyron2.NewServer(ctx)
 	if err != nil {
-		log.Panic("failure creating server: ", err)
+		vlog.Panic("failure creating server: ", err)
 	}
 
 	// Create the fortune server stub.
@@ -67,12 +67,12 @@
 	if endpoint, err := server.Listen(veyron2.GetListenSpec(ctx)); err == nil {
 		fmt.Printf("Listening at: %v\n", endpoint)
 	} else {
-		log.Panic("error listening to service: ", err)
+		vlog.Panic("error listening to service: ", err)
 	}
 
 	// Start the fortune server at "fortune".
 	if err := server.Serve("fortune", fortuneServer, vflag.NewAuthorizerOrDie()); err != nil {
-		log.Panic("error serving service: ", err)
+		vlog.Panic("error serving service: ", err)
 	}
 
 	// Wait forever.
diff --git a/testdata/src/ping/ping.go b/testdata/src/ping/ping.go
index ea8573e..38ecf6a 100644
--- a/testdata/src/ping/ping.go
+++ b/testdata/src/ping/ping.go
@@ -7,6 +7,7 @@
 
 	_ "v.io/core/veyron/profiles"
 	"v.io/core/veyron2"
+	"v.io/core/veyron2/vlog"
 
 	"pingpong"
 )
@@ -14,12 +15,11 @@
 func main() {
 	ctx, shutdown := veyron2.Init()
 	defer shutdown()
-	log := veyron2.GetLogger(ctx)
 
 	s := pingpong.PingPongClient("pingpong")
 	pong, err := s.Ping(ctx, "PING")
 	if err != nil {
-		log.Fatal("error pinging: ", err)
+		vlog.Fatal("error pinging: ", err)
 	}
 	fmt.Println(pong)
 }
diff --git a/testdata/src/pong/pong.go b/testdata/src/pong/pong.go
index cae0ca3..6911222 100644
--- a/testdata/src/pong/pong.go
+++ b/testdata/src/pong/pong.go
@@ -9,6 +9,7 @@
 	_ "v.io/core/veyron/profiles"
 	"v.io/core/veyron2"
 	"v.io/core/veyron2/ipc"
+	"v.io/core/veyron2/vlog"
 
 	"pingpong"
 )
@@ -24,24 +25,23 @@
 func main() {
 	ctx, shutdown := veyron2.Init()
 	defer shutdown()
-	log := veyron2.GetLogger(ctx)
 
 	s, err := veyron2.NewServer(ctx)
 	if err != nil {
-		log.Fatal("failure creating server: ", err)
+		vlog.Fatal("failure creating server: ", err)
 	}
-	log.Info("Waiting for ping")
+	vlog.Info("Waiting for ping")
 
 	serverPong := pingpong.PingPongServer(&pongd{})
 
 	if endpoint, err := s.Listen(veyron2.GetListenSpec(ctx)); err == nil {
 		fmt.Printf("Listening at: %v\n", endpoint)
 	} else {
-		log.Fatal("error listening to service: ", err)
+		vlog.Fatal("error listening to service: ", err)
 	}
 
 	if err := s.Serve("pingpong", serverPong, nil); err != nil {
-		log.Fatal("error serving service: ", err)
+		vlog.Fatal("error serving service: ", err)
 	}
 
 	// Wait forever.