Milo Refactor: Remove theme support

milo/appengine/common/testBundle.go

Index: milo/appengine/common/testBundle.go
diff --git a/milo/appengine/settings/testable_handler.go b/milo/appengine/common/testBundle.go
similarity index 63%
rename from milo/appengine/settings/testable_handler.go
rename to milo/appengine/common/testBundle.go
index e7b517a19564231029154420a6d1cde099a435b7..19a7eaeb1591c18b926cd8b4026d13f4ff50ed4f 100644
--- a/milo/appengine/settings/testable_handler.go
+++ b/milo/appengine/common/testBundle.go
@@ -4,20 +4,12 @@
 
 // Data Structures used for defining test data for use with testing each theme.
 
-package settings
+package common
 
 import (
 	"github.com/luci/luci-go/server/templates"
 )
 
-// TestableHandler pairs up a handler with a list of test data.
-type TestableHandler interface {
-	// ThemedHandler represents the Hanler that this TestableHandler is associated with.
-	ThemedHandler
-	// TestData returns a list of example data used for testing if a theme renders correctly.
-	TestData() []TestBundle
-}
-
 // TestBundle is a template arg associated with a description used for testing.
 type TestBundle struct {
 	// Description is a short one line description of what the data contains.