migrated home-manager from a nixos module to a standalone thing

hosts/common/users.nix

@@ -21,10 +21,4 @@
       hashedPassword = "!";
     };
   };
-
-  home-manager = {
-    useGlobalPkgs = true;
-    useUserPackages = true;
-    extraSpecialArgs = specialArgs;
-  };
 }

hosts/desktops/common/users.nix

@@ -18,6 +18,4 @@
       "adbusers"
     ];
   };
-
-  home-manager.users.user = import ../../../users/desktops/user.nix;
 }

hosts/servers/alexandria/users.nix

@@ -13,6 +13,4 @@
       };
     };
   };
-
-  home-manager.users.user = import ../../../users/servers/user.nix;
 }