message: clean up after rebase
diff: @@ -314,11 +314,6 @@ export class GraphiQL extends React.Component {
  {'Docs'}
  </button>
  }
  - <GraphiQL.ToolbarButton
  - onClick={this.handleToggleHistory}
  - title="Show History"
  - label="History"
  - />
  </div>
  <div
  ref={n => { this.editorBarComponent = n; }}
  