Removed an unnecessary rule

bigbluebutton-html5/imports/ui/components/whiteboard/annotations/text/component.jsx

@@ -30,7 +30,6 @@ export default class TextDrawComponent extends Component {
   static getPresenterStyles(results) {
     const styles = {
       fontFamily: 'Arial',
-      lineHeight: 'normal',
       border: '1px solid black',
       width: '100%',
       height: '100%',