Revert "Make the timeline less noisy for screen readers"

src/components/views/elements/Flair.js

@@ -45,18 +45,12 @@ class FlairAvatar extends React.Component {
         const tooltip = this.props.groupProfile.name ?
             `${this.props.groupProfile.name} (${this.props.groupProfile.groupId})`:
             this.props.groupProfile.groupId;
-
-        // Note: we hide flair from screen readers but ideally we'd support
-        // reading something out on hover. There's no easy way to do this though,
-        // so instead we just hide it completely.
         return <img
             src={httpUrl}
             width="16"
             height="16"
             onClick={this.onClick}
-            title={tooltip}
-            aria-hidden={true}
-        />;
+            title={tooltip} />;
     }
 }