Fix timestamps

7f83590846 changed timestamps to be hidden
at the DOM level, not the CSS level. We can keep that approach, we just
need to ensure they still get shown at the right times.

Signed-off-by: Robin Townsend <robin@robin.town>

src/components/views/dialogs/MessageEditHistoryDialog.js

@@ -159,7 +159,7 @@ export default class MessageEditHistoryDialog extends React.PureComponent {
                 stickyBottom={false}
                 startAtBottom={false}
             >
-                <ul className="mx_MessageEditHistoryDialog_edits mx_MessagePanel_alwaysShowTimestamps">{this._renderEdits()}</ul>
+                <ul className="mx_MessageEditHistoryDialog_edits">{this._renderEdits()}</ul>
             </ScrollPanel>);
         }
         const BaseDialog = sdk.getComponent('views.dialogs.BaseDialog');