oauth2: drop pre-1.4 workaround

Change-Id: Icac33569b4937602b0aac46ec36cc85b5aa53877
Reviewed-on: https://go-review.googlesource.com/6071
Reviewed-by: Andrew Gerrand <adg@golang.org>
diff --git a/example_test.go b/example_test.go
index e4fef7d..8be2788 100644
--- a/example_test.go
+++ b/example_test.go
@@ -7,15 +7,10 @@
 import (
 	"fmt"
 	"log"
-	"testing"
 
 	"golang.org/x/oauth2"
 )
 
-// TODO(jbd): Remove after Go 1.4.
-// Related to https://codereview.appspot.com/107320046
-func TestA(t *testing.T) {}
-
 func ExampleConfig() {
 	conf := &oauth2.Config{
 		ClientID:     "YOUR_CLIENT_ID",
diff --git a/google/example_test.go b/google/example_test.go
index ad121b8..bd27626 100644
--- a/google/example_test.go
+++ b/google/example_test.go
@@ -11,7 +11,6 @@
 	"io/ioutil"
 	"log"
 	"net/http"
-	"testing"
 
 	"golang.org/x/oauth2"
 	"golang.org/x/oauth2/google"
@@ -20,10 +19,6 @@
 	"google.golang.org/appengine/urlfetch"
 )
 
-// Remove after Go 1.4.
-// Related to https://codereview.appspot.com/107320046
-func TestA(t *testing.T) {}
-
 func Example_webServer() {
 	// Your credentials should be obtained from the Google
 	// Developer Console (https://console.developers.google.com).