aria-haspop indicates popup menus. It is not needed here

Summary: `aria-haspopup` is used to indicate "popup button"; buttons that, when pressed, show a little menu of options. It's not meant to indicate any element that has a dialog associated with it. In the case of draft.js, the `aria-expanded` attribute is used to indicate that the input has a dropdown with options.

Reviewed By: spicyj

Differential Revision: D5550366

fbshipit-source-id: 90249146a7f69f538ab2177842ee925825238ccb

src/component/base/DraftEditor.react.js

@@ -234,9 +234,6 @@ class DraftEditor extends React.Component {
     const ariaExpanded = ariaRole === 'combobox'
       ? !!this.props.ariaExpanded
       : null;
-    const ariaHasPopup = ariaRole === 'combobox'
-      ? !!this.props.ariaHasPopup
-      : null;
 
     return (
       <div className={rootClass}>
@@ -254,7 +251,6 @@ class DraftEditor extends React.Component {
               this._showPlaceholder() ? this._placeholderAccessibilityID : null
             }
             aria-expanded={readOnly ? null : ariaExpanded}
-            aria-haspopup={readOnly ? null : ariaHasPopup}
             aria-label={this.props.ariaLabel}
             aria-multiline={this.props.ariaMultiline}
             autoCapitalize={this.props.autoCapitalize}

src/component/base/DraftEditorProps.js

@@ -95,7 +95,6 @@ export type DraftEditorProps = {
   ariaControls?: string,
   ariaDescribedBy?: string,
   ariaExpanded?: boolean,
-  ariaHasPopup?: boolean,
   ariaLabel?: string,
   ariaMultiline?: boolean,