remove unused code

pkg/config/ids.go

@@ -1,19 +0,0 @@
-package config
-
-import (
-	"reflect"
-)
-
-// GetIDFromField returns the JSON key associated with a particular field, which serves as the check ID.
-func GetIDFromField(config interface{}, name string) string {
-	t := reflect.TypeOf(config)
-	field, ok := t.FieldByName(name)
-	if !ok {
-		panic("No JSON annotation for field " + name)
-	}
-	id, ok := field.Tag.Lookup("json")
-	if !ok {
-		panic("No JSON tag for field " + name)
-	}
-	return id
-}