diff --git a/core/modules/telephone/config/schema/telephone.schema.yml b/core/modules/telephone/config/schema/telephone.schema.yml
index 7411f78..3baefe3 100644
--- a/core/modules/telephone/config/schema/telephone.schema.yml
+++ b/core/modules/telephone/config/schema/telephone.schema.yml
@@ -24,11 +24,3 @@ field.telephone.value:
         value:
           type: string
           label: 'Value'
-
-field_widget.telephone_default.settings:
-  type: mapping
-  label: 'telephone number widget settings'
-  mapping:
-    placeholder:
-      type: label
-      label: 'Placeholder'