diff --git a/charms/ovn-central-k8s/requirements-dev.txt b/charms/ovn-central-k8s/requirements-dev.txt
deleted file mode 100644
index 4f2a3f5b..00000000
--- a/charms/ovn-central-k8s/requirements-dev.txt
+++ /dev/null
@@ -1,3 +0,0 @@
--r requirements.txt
-coverage
-flake8
diff --git a/charms/ovn-central-k8s/unit_tests/test_ovn_central_charm.py b/charms/ovn-central-k8s/unit_tests/test_ovn_central_charm.py
index db302759..c27f3331 100644
--- a/charms/ovn-central-k8s/unit_tests/test_ovn_central_charm.py
+++ b/charms/ovn-central-k8s/unit_tests/test_ovn_central_charm.py
@@ -28,22 +28,11 @@ class _OVNCentralWallabyOperatorCharm(charm.OVNCentralWallabyOperatorCharm):
 
     def __init__(self, framework):
         self.seen_events = []
-        self.render_calls = []
         super().__init__(framework)
 
     def _log_event(self, event):
         self.seen_events.append(type(event).__name__)
 
-    def renderer(self, containers, container_configs, template_dir,
-                 openstack_release, adapters):
-        self.render_calls.append(
-            (
-                containers,
-                container_configs,
-                template_dir,
-                openstack_release,
-                adapters))
-
     def configure_charm(self, event):
         super().configure_charm(event)
         self._log_event(event)