get rid of git-crypt

.git-crypt/.gitattributes

@@ -1,4 +0,0 @@
-# Do not edit this file.  To specify the files to encrypt, create your own
-# .gitattributes file in the directory where your files are.
-* !filter !diff
-*.gpg binary

.gitattributes

@@ -1,3 +0,0 @@
-secrets/**/*.secret filter=git-crypt diff=git-crypt
-secrets/matrix-email-config.nix filter=git-crypt diff=git-crypt
-home/secrets/*.secret filter=git-crypt diff=git-crypt

boreal.nix

@@ -10,9 +10,6 @@
     # Service definitions
     ./services
 
-    # Configuration secrets
-    ./secrets
-
     # Host-specific config
     ./hosts/boreal
   ];

poseidon.nix

@@ -11,9 +11,6 @@
     # Service definitions
     ./services
 
-    # Configuration secrets
-    ./secrets
-
     # Host-specific config
     ./hosts/poseidon
   ];

secrets/default.nix

@@ -1,14 +0,0 @@
-{ pkgs, lib, config, ... }:
-let
-  inherit (lib)
-    fileContents
-    mkOption
-  ;
-in {
-  options.my.secrets = let inherit (lib) types; in mkOption {
-    type = types.attrs;
-  };
-
-  config.my.secrets = {
-  };
-}