matrix: remove unused input

Flake lock file updates:

• Updated input 'nixos':
    'github:SuperSandro2000/nixpkgs/676124f6c629c2affca048a0da4c3a51c99f363b' (2023-04-14)
  → 'github:SuperSandro2000/nixpkgs/704e5a01444e6670da33fb3600d52707f08f68dc' (2023-04-25)
• Updated input 'openwrt-imagebuilder':
    'github:astro/nix-openwrt-imagebuilder/109203faf3707f38ac72f7de6e765b826a918b40' (2023-04-24)
  → 'github:astro/nix-openwrt-imagebuilder/f20119054eb4887d9c6e51f177f2f3d68b626a37' (2023-04-25)
• Updated input 'zentralwerk':
    'git+https://gitea.c3d2.de/zentralwerk/network.git?ref=refs%2fheads%2fmaster&rev=d7e617d755f1f67b33709fd5df207758aeaace52' (2023-04-19)
  → 'git+https://gitea.c3d2.de/zentralwerk/network.git?ref=refs%2fheads%2fmaster&rev=3750053a7bcac62249610dd25c4b4f88cdfebf99' (2023-04-24)

flake.lock

@@ -385,11 +385,11 @@
     },
     "nixos": {
       "locked": {
-        "lastModified": 1681516439,
-        "narHash": "sha256-0V5ruWplaxU7IvGJUoqOg6Jb6MhgsJ5ttQZaxux3+Z0=",
+        "lastModified": 1682449949,
+        "narHash": "sha256-m5lnQurWkAaDD7uJyHM4jTucH8Uld4ninOYwtNGFukc=",
         "owner": "SuperSandro2000",
         "repo": "nixpkgs",
-        "rev": "676124f6c629c2affca048a0da4c3a51c99f363b",
+        "rev": "704e5a01444e6670da33fb3600d52707f08f68dc",
         "type": "github"
       },
       "original": {
@@ -475,11 +475,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1682329042,
-        "narHash": "sha256-gIjZZfLGT2Sz634u22HeT7CUyCETOQxrb4ANXRBK9TA=",
+        "lastModified": 1682418802,
+        "narHash": "sha256-pmUDni8IZ9lNuDQG1hOhpQ4vxKdY+3yzntWyBYopaxU=",
         "owner": "astro",
         "repo": "nix-openwrt-imagebuilder",
-        "rev": "109203faf3707f38ac72f7de6e765b826a918b40",
+        "rev": "f20119054eb4887d9c6e51f177f2f3d68b626a37",
         "type": "github"
       },
       "original": {
@@ -827,11 +827,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1681934788,
-        "narHash": "sha256-DoUWz7gzISnLuWg9Beqp1H40PbEztPXPyE8gaQTp56M=",
+        "lastModified": 1682365039,
+        "narHash": "sha256-Jg81Ql5dxJ/ewll+JaAJC5X5fTC88dgfrC3pIVtdbWw=",
         "ref": "refs/heads/master",
-        "rev": "d7e617d755f1f67b33709fd5df207758aeaace52",
-        "revCount": 1764,
+        "rev": "3750053a7bcac62249610dd25c4b4f88cdfebf99",
+        "revCount": 1765,
         "type": "git",
         "url": "https://gitea.c3d2.de/zentralwerk/network.git"
       },

hosts/matrix/default.nix

@@ -1,4 +1,4 @@
-{ config, lib, libS, pkgs, ... }:
+{ config, libS, pkgs, ... }:
 
 {
   c3d2.deployment.server = "server10";