Vendor using dep

vendor/github.com/google/go-github/github/with_appengine.go

@@ -17,10 +17,9 @@ package github
 import (
 	"context"
 	"net/http"
-
-	"google.golang.org/appengine"
 )
 
-func withContext(ctx context.Context, req *http.Request) (context.Context, *http.Request) {
-	return appengine.WithContext(ctx, req), req
+func withContext(ctx context.Context, req *http.Request) *http.Request {
+	// No-op because App Engine adds context to a request differently.
+	return req
 }