chore: remove unused relations

removes the old manual `has_many` relationship in favor of a proper
`many_to_many` for network <-> container and volume <-> container. These were
not checked with old ash versions, but cause now warnings during the
compilation.

Signed-off-by: Luca Zaninotto <luca.zaninotto@secomind.com>

Author: lusergit

backend/lib/edgehog/containers/network/network.ex

@@ -97,8 +97,6 @@ defmodule Edgehog.Containers.Network do
       join_relationship :network_deployments
       public? true
     end
-
-    has_many :container_networks, ContainerNetwork
   end
 
   calculations do
@@ -118,9 +116,5 @@ defmodule Edgehog.Containers.Network do
   postgres do
     table "networks"
     repo Edgehog.Repo
-
-    references do
-      reference :container_networks, on_delete: :restrict, match_with: [tenant_id: :tenant_id]
-    end
   end
 end

backend/lib/edgehog/containers/volume/volume.ex

@@ -86,7 +86,11 @@ defmodule Edgehog.Containers.Volume do
       public? true
     end
 
-    has_many :container_volumes, Edgehog.Containers.ContainerVolume
+    many_to_many :containers, Edgehog.Containers.Container do
+      through Edgehog.Containers.ContainerVolume
+      join_relationship :container_volumes
+      public? true
+    end
   end
 
   calculations do
@@ -106,9 +110,5 @@ defmodule Edgehog.Containers.Volume do
   postgres do
     table "volumes"
     repo Edgehog.Repo
-
-    references do
-      reference :container_volumes, on_delete: :restrict, match_with: [tenant_id: :tenant_id]
-    end
   end
 end