Remove dependency from config repo (#2182)

The templates infrastructure replaces this

util/test/registry.go

@@ -1,35 +0,0 @@
-package test
-
-import (
-	"github.com/evcc-io/config/registry"
-	_ "github.com/evcc-io/config/templates" // import all config templates
-	"gopkg.in/yaml.v3"
-)
-
-// ConfigTemplate is a configuration template from https://github.com/evcc-io/config
-type ConfigTemplate struct {
-	registry.Template
-	Config map[string]interface{}
-}
-
-// ConfigTemplates returns configuration templates for giving class
-func ConfigTemplates(class string) (res []ConfigTemplate) {
-	templates := registry.TemplatesByClass(class)
-
-	for _, tmpl := range templates {
-		var conf map[string]interface{}
-		if err := yaml.Unmarshal([]byte(tmpl.Sample), &conf); err != nil {
-			// silently ignore errors here
-			continue
-		}
-
-		parsed := ConfigTemplate{
-			Template: tmpl,
-			Config:   conf,
-		}
-
-		res = append(res, parsed)
-	}
-
-	return res
-}