refactor(registry): remove legacy endpoint helpers

hosts/neogaia/default.nix

@@ -31,6 +31,8 @@
   # So wifi can be joined from the console.
   networking.networkmanager.enable = true;
 
+  registry.address.neogaia.self = "10.23.50.146";
+
   # So setup can be driven over the network.
   # The matching host public keys sit beside this file in plaintext, since
   # publishing them is their purpose.

hosts/pikachu/default.nix

@@ -72,6 +72,8 @@
     pools.pikachu = { };
   };
 
+  registry.address.pikachu.self = "10.23.10.102";
+
   modules.ssh.enable = true;
   modules.ssh.hostKeys.sopsFile = ../../secrets/pikachu.yaml;
   modules.ssh.userKey.sopsFile = ../../secrets/pikachu.yaml;