diff --git a/core/frontend/services/themes/index.js b/core/frontend/services/themes/index.js
index f3bec1f031..60d95c4b7a 100644
--- a/core/frontend/services/themes/index.js
+++ b/core/frontend/services/themes/index.js
@@ -96,9 +96,6 @@ module.exports = {
         } else {
             return engineDefaults['ghost-api'];
         }
-    },
-    delete: function (){
-
     },
     activate: function activate(loadedTheme, checkedTheme, error) {
         // no need to check the score, activation should be used in combination with validate.check