vars: simplify collectFiles

nixosModules/clanCore/vars/secret/sops/collectFiles.nix

@@ -5,18 +5,16 @@
 let
   inherit (lib)
     filterAttrs
-    flatten
     mapAttrsToList
     ;
-in
+
-generators:
+  relevantFiles = filterAttrs (
-let
-  relevantFiles =
-    generator:
-    filterAttrs (
     _name: f: f.secret && f.deploy && (f.neededFor == "users" || f.neededFor == "services")
-    ) generator.files;
+  );
-  allFiles = flatten (
+
+  collectFiles =
+    generators:
+    builtins.concatLists (
       mapAttrsToList (
         gen_name: generator:
         mapAttrsToList (fname: file: {
@@ -30,8 +28,8 @@ let
             mode
             restartUnits
             ;
-      }) (relevantFiles generator)
+        }) (relevantFiles generator.files)
       ) generators
     );
 in
-allFiles
+collectFiles