Remove DataRaceCheck (#29258)

Since #26254, it started using `{{ctx.Locale.Tr ...}}`

Now the `ctx` seems stable enough, so the check could be removed.

templates/base/footer.tmpl

@@ -16,6 +16,5 @@
 	<script src="{{AssetUrlPrefix}}/js/index.js?v={{AssetVersion}}" onerror="alert('Failed to load asset files from ' + this.src + '. Please make sure the asset files can be accessed.')"></script>
 
 	{{template "custom/footer" .}}
-	{{ctx.DataRaceCheck $.Context}}
 </body>
 </html>