nixos/tests/prometheus-exporters/kea: remove

The test framework for exporters is too limited to do sensible testing
of this exporter.

nixos/tests/prometheus-exporters.nix

@@ -418,54 +418,6 @@ let
       '';
     };
 
-    kea = let
-      controlSocketPathV4 = "/run/kea/dhcp4.sock";
-      controlSocketPathV6 = "/run/kea/dhcp6.sock";
-    in
-    {
-      exporterConfig = {
-        enable = true;
-        controlSocketPaths = [
-          controlSocketPathV4
-          controlSocketPathV6
-        ];
-      };
-      metricProvider = {
-        services.kea = {
-          dhcp4 = {
-            enable = true;
-            settings = {
-              control-socket = {
-                socket-type = "unix";
-                socket-name = controlSocketPathV4;
-              };
-            };
-          };
-          dhcp6 = {
-            enable = true;
-            settings = {
-              control-socket = {
-                socket-type = "unix";
-                socket-name = controlSocketPathV6;
-              };
-            };
-          };
-        };
-      };
-
-      exporterTest = ''
-        wait_for_unit("kea-dhcp4-server.service")
-        wait_for_unit("kea-dhcp6-server.service")
-        wait_for_file("${controlSocketPathV4}")
-        wait_for_file("${controlSocketPathV6}")
-        wait_for_unit("prometheus-kea-exporter.service")
-        wait_for_open_port(9547)
-        succeed(
-            "curl --fail localhost:9547/metrics | grep 'packets_received_total'"
-        )
-      '';
-    };
-
     knot = {
       exporterConfig = {
         enable = true;

pkgs/servers/monitoring/prometheus/kea-exporter.nix

@@ -1,7 +1,6 @@
 { lib
 , python3Packages
 , fetchPypi
-, nixosTests
 }:
 
 python3Packages.buildPythonApplication rec {
@@ -30,10 +29,6 @@ python3Packages.buildPythonApplication rec {
     $out/bin/kea-exporter --version | grep -q ${version}
   '';
 
-  passthru.tests = {
-    inherit (nixosTests.prometheus-exporters) kea;
-  };
-
   meta = with lib; {
     changelog = "https://github.com/mweinelt/kea-exporter/blob/v${version}/HISTORY";
     description = "Export Kea Metrics in the Prometheus Exposition Format";