path-selector: display path instead of name

src/renderer/pages/preferences-page.js

@@ -101,7 +101,6 @@ class PreferencesPage extends React.Component {
             title: 'Select media player app',
             properties: ['openFile']
           }}
-          displayValue={playerName}
           onChange={this.handleExternalPlayerPathChange}
           title='External player'
           value={playerPath}