Remove unused config on UI (#10078)

Signed-off-by: jolheiser <[email protected]>

Author: jolheiser

templates/admin/config.tmpl

@@ -281,8 +281,6 @@
 				<dd>{{.SessionConfig.Maxlifetime}} {{.i18n.Tr "tool.raw_seconds"}}</dd>
 				<dt>{{.i18n.Tr "admin.config.https_only"}}</dt>
 				<dd><i class="fa fa{{if .SessionConfig.Secure}}-check{{end}}-square-o"></i></dd>
-				<dt>{{.i18n.Tr "admin.config.cookie_life_time"}}</dt>
-				<dd>{{.SessionConfig.CookieLifeTime}} {{.i18n.Tr "tool.raw_seconds"}}</dd>
 			</dl>
 		</div>