Make luci-go compile again after deps.lock roll.

milo/appengine/common/middleware.go

Index: milo/appengine/common/middleware.go
diff --git a/milo/appengine/common/middleware.go b/milo/appengine/common/middleware.go
index c54d2b3ac71608cab9a9477bbc06907cae762afd..5066faf82782aeb74c2a6c3dc1a393eb80c19a9c 100644
--- a/milo/appengine/common/middleware.go
+++ b/milo/appengine/common/middleware.go
@@ -15,8 +15,6 @@ import (
 	"github.com/luci/luci-go/appengine/gaeauth/server"
 	"github.com/luci/luci-go/appengine/gaemiddleware"
 	"github.com/luci/luci-go/common/clock"
-	"github.com/luci/luci-go/common/cloudlogging"
-	"github.com/luci/luci-go/common/logging/cloudlog"
 	"github.com/luci/luci-go/server/analytics"
 	"github.com/luci/luci-go/server/auth"
 	"github.com/luci/luci-go/server/auth/identity"
@@ -73,30 +71,11 @@ func Base(templatePath string) router.MiddlewareChain {
 // FlexBase returns the basic middleware for use on appengine flex.  Flex does not
 // allow the use of appengine APIs.
 func FlexBase() router.MiddlewareChain {
-	// Use the cloud logger.
-	logger := func(c *router.Context, next router.Handler) {
-		project := info.AppID(c.Context)
-		logClient, err := cloudlogging.NewClient(
-			cloudlogging.ClientOptions{
-				ProjectID:    project,
-				LogID:        "gae_app",
-				ResourceType: "gae_app",
-			},
-			// TODO(hinoka): This may require authentication to actually work.
-			http.DefaultClient)
-		if err != nil {
-			panic(err)
-		}
-		c.Context = cloudlog.Use(c.Context, cloudlog.Config{}, logClient)
-		next(c)
-	}
 	// Installs the Info and Datastore services.
-	base := func(c *router.Context, next router.Handler) {
+	return router.NewMiddlewareChain(func(c *router.Context, next router.Handler) {
 		c.Context = cloud.UseFlex(c.Context)
 		next(c)
-	}
-	// Now chain it all together!
-	return router.NewMiddlewareChain(base, logger)
+	})
 }
 
 // The context key, so that we can embed the http.Request object into