message: remove redundant override-type
diff: @@ -22,7 +22,6 @@ export interface Member extends Typed {
  name: string;
  default?: string;
  required?: 1;
  - "override-type"?: string;
  specs?: string;
  }
  @@ -54,7 +53,6 @@ export interface Property extends Typed {
  "event-handler-map-to-window"?: string;
  static?: 1;
  comment?: string;
  - "override-type"?: string;
  required?: 1;
  specs?: string;
  deprecated?: 1;
  