Fix double alert in oauth2 application edit view (#14764)

Signed-off-by: a1012112796 <1012112796@qq.com>

templates/user/settings/applications_oauth2_edit.tmpl

@@ -7,7 +7,6 @@
 			{{.i18n.Tr "settings.edit_oauth2_application"}}
 		</h4>
 		<div class="ui attached segment">
-			{{template "base/alert" .}}
 			<p>{{.i18n.Tr "settings.oauth2_application_create_description"}}</p>
 		</div>
 		<div class="ui attached segment form ignore-dirty">