Milo Refactor: Remove theme support

milo/appengine/frontend/frontpage.go

Index: milo/appengine/frontend/frontpage.go
diff --git a/milo/appengine/frontend/frontpage.go b/milo/appengine/frontend/frontpage.go
index 6cf6e8edaa63733922e680bc4d57e70d3a1a9534..df90dc463a37f65191844f9972362f1e62b6eb15 100644
--- a/milo/appengine/frontend/frontpage.go
+++ b/milo/appengine/frontend/frontpage.go
@@ -19,13 +19,7 @@ import (
 	"github.com/luci/luci-go/milo/appengine/settings"
 )
 
-type frontpage struct{}
-
-func (f frontpage) GetTemplateName(t settings.Theme) string {
-	return "frontpage.html"
-}
-
-func (f frontpage) Render(c context.Context, r *http.Request, p httprouter.Params) (*templates.Args, error) {
+func frontpageHandler(c context.Context, r *http.Request, p httprouter.Params) (*templates.Args, error) {
 	fp := resp.FrontPage{}
 	var mBuildbot, mBuildbucket *resp.CIService
 
@@ -48,10 +42,7 @@ func (f frontpage) Render(c context.Context, r *http.Request, p httprouter.Param
 	fp.CIServices = append(fp.CIServices, *mBuildbot)
 	return &templates.Args{"frontpage": fp}, nil
 }
-
-type testableFrontpage struct{ frontpage }
-
-func (l testableFrontpage) TestData() []settings.TestBundle {
+func frontpageTestData() []settings.TestBundle {
 	data := &templates.Args{
 		"frontpage": resp.FrontPage{
 			CIServices: []resp.CIService{