remove libadwaita, as libadwaita in nixpkgs hit 1.7 🎉 HEAD main

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/e3e32b642a31e6714ec1b712de8c91a3352ce7e1' (2025-03-09)
  → 'github:nixos/nixpkgs/2795c506fe8fb7b03c36ccb51f75b6df0ab2553f' (2025-05-20)

2 files changed, 3 insertions, 19 deletions

diff --git a/flake.lock b/flake.lock
index 2159fa9..972b2af 100644
--- a/flake.lock
+++ b/flake.lock
@@ -36,11 +36,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1741513245,
-        "narHash": "sha256-7rTAMNTY1xoBwz0h7ZMtEcd8LELk9R5TzBPoHuhNSCk=",
+        "lastModified": 1747744144,
+        "narHash": "sha256-W7lqHp0qZiENCDwUZ5EX/lNhxjMdNapFnbErcbnP11Q=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "e3e32b642a31e6714ec1b712de8c91a3352ce7e1",
+        "rev": "2795c506fe8fb7b03c36ccb51f75b6df0ab2553f",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 7489e2c..c7b7a7a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -25,22 +25,8 @@
         craneLib = crane.mkLib final;
       };
     };
-    overlays.adwaita = final: prev: {
-      libadwaita = prev.libadwaita.overrideAttrs (old: rec {
-        version = "1.7.beta";
-
-        src = final.fetchFromGitLab {
-          domain = "gitlab.gnome.org";
-          owner = "GNOME";
-          repo = "libadwaita";
-          rev = version;
-          hash = "sha256-Nym/odhjXlQXF7YfXZ6+fVutZS1iTCvsJI8/b0CbQ2Q=";
-        };
-      });
-    };
   } // forAllSystems (system: let
     pkgs = import nixpkgs {
-      overlays = [ self.overlays.adwaita ];
       localSystem = { inherit system; };
     };
     crane' = crane.mkLib pkgs;
@@ -66,8 +52,6 @@
         cd $out/share/icons/Colloid-Dark/apps/scalable
         ln -sr ../../../Colloid-Light/apps/scalable/xyz.vikanezrimaya.kittybox.Bowl.svg $out/share/icons/Colloid-Dark/apps/scalable/xyz.vikanezrimaya.kittybox.Bowl.svg
       '';
-
-      libadwaita = pkgs.libadwaita;
     };
 
     checks = {