Fix deleting port from port details page

This patch fixes "Delete port" button at the port details page:
Project -> Network -> Networks -> <network name> -> Ports -> <port name>

Change-Id: I84f4da9c84d75c458b54bd456cbc7b92b303ba81
Closes-Bug: #1854514

openstack_dashboard/dashboards/project/networks/ports/views.py

@@ -138,7 +138,8 @@ class DetailView(tabs.TabbedTableView):
         ]
         context["custom_breadcrumb"] = breadcrumb
         context["port"] = port
-        context["url"] = self.get_redirect_url()
+        context["url"] = reverse(
+            'horizon:project:networks:ports_tab', args=[port.network_id])
         context["actions"] = table.render_row_actions(port)
         return context