message: props: removed redundant HorizontalAlign
diff: import React from 'react';
  import { OS } from '../lib/platform';
  -export type HorizontalAlign = 'left' | 'center' | 'right';
  -
  export interface ObjectClassNames {
  [index: string]: boolean;
  }
  @@ -70,5 +68,5 @@ export interface HasFormStatus {
  }
  export interface HasAlign {
  - align?: HorizontalAlign;
  + align?: 'left' | 'center' | 'right';
  }
  