resolve console warning

src/client/js/components/PageHistory/PageRevisionList.jsx

@@ -126,7 +126,7 @@ class PageRevisionList extends React.Component {
         </div>
         <hr />
         <div className={classNames.join(' ')}>
-          <div class="d-flex">
+          <div className="d-flex">
             <div className="mr-auto">バージョン</div>
             <div>ソース<span className="ml-2 mr-2">/</span>ターゲット</div>
           </div>

src/client/js/components/PageHistory/RevisionCompareTargetSelector.jsx

@@ -8,7 +8,7 @@ import RevisionCompareContainer from '../../services/RevisionCompareContainer';
 
 const RevisionCompareTargetSelector = (props) => {
 
-  const { t, revision, hasDiff, revisionCompareContainer } = props;
+  const { revision, hasDiff, revisionCompareContainer } = props;
   const { fromRevision, toRevision } = revisionCompareContainer.state;
 
   if (!hasDiff) {
@@ -50,7 +50,6 @@ const RevisionCompareTargetSelector = (props) => {
 const RevisionCompareTargetSelectorWrapper = withUnstatedContainers(withLoadingSppiner(RevisionCompareTargetSelector), [RevisionCompareContainer]);
 
 RevisionCompareTargetSelector.propTypes = {
-  t: PropTypes.func.isRequired, // i18next
   revisionCompareContainer: PropTypes.instanceOf(RevisionCompareContainer).isRequired,
 
   revision: PropTypes.object,