move submissions by round component

opentech/static_src/src/app/src/SubmissionsByRoundApp.js

@@ -34,17 +34,13 @@ class SubmissionsByRoundApp extends React.Component {
 
                 {this.state.detailOpen &&
                     <DetailView>
-                        {this.renderSubmissionsByRound()}
+                        <SubmissionsByRoundContainer roundId={this.props.roundId} />
                         <DisplayPanel />
                     </DetailView>
                 }
             </>
         )
     }
-
-    renderSubmissionsByRound() {
-        return <SubmissionsByRoundContainer roundId={this.props.roundId} />;
-    }
 }