nix: Replace our ethercat package which the one packaged in nixpkgs

Signed-off-by: Steffen Vogel <post@steffenvogel.de>

flake.lock

@@ -1,29 +1,12 @@
 {
   "nodes": {
-    "ethercat": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1694079333,
-        "narHash": "sha256-6F3zBhnU4CFpiO+Cnbd6ecUuiGH/KUntpPfuSYZ+rAI=",
-        "owner": "etherlab.org",
-        "repo": "ethercat",
-        "rev": "722b2d607c4fc004ebf5204aaede0059c02274f4",
-        "type": "gitlab"
-      },
-      "original": {
-        "owner": "etherlab.org",
-        "ref": "stable-1.5",
-        "repo": "ethercat",
-        "type": "gitlab"
-      }
-    },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1711370797,
-        "narHash": "sha256-2xu0jVSjuKhN97dqc4bVtvEH52Rwh6+uyI1XCnzoUyI=",
+        "lastModified": 1712666087,
+        "narHash": "sha256-WwjUkWsjlU8iUImbivlYxNyMB1L5YVqE8QotQdL9jWc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "c726225724e681b3626acc941c6f95d2b0602087",
+        "rev": "a76c4553d7e741e17f289224eda135423de0491d",
         "type": "github"
       },
       "original": {
@@ -35,7 +18,6 @@
     },
     "root": {
       "inputs": {
-        "ethercat": "ethercat",
         "nixpkgs": "nixpkgs"
       }
     }

flake.nix

@@ -5,11 +5,6 @@
 
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
-
-    ethercat = {
-      url = "gitlab:etherlab.org/ethercat/stable-1.5";
-      flake = false;
-    };
   };
 
   outputs = {
@@ -85,10 +80,6 @@
         withAllHooks = true;
         withAllNodes = true;
       };
-
-      ethercat = pkgs.callPackage (nixDir + "/ethercat.nix") {
-        src = inputs.ethercat;
-      };
     };
   in {
     # Standard flake attribute for normal packages (not cross-compiled)

packaging/nix/ethercat.nix

@@ -1,31 +0,0 @@
-# SPDX-FileCopyrightText: 2023 OPAL-RT Germany GmbH
-# SPDX-License-Identifier: Apache-2.0
-{
-  autoconf,
-  automake,
-  cmake,
-  lib,
-  libtool,
-  pkg-config,
-  stdenv,
-  src,
-}:
-stdenv.mkDerivation {
-  pname = "ethercat";
-  version = "villas";
-  src = src;
-  separateDebugInfo = true;
-  nativeBuildInputs = [autoconf automake libtool pkg-config];
-  preConfigure = ''
-    bash ./bootstrap
-  '';
-  configureFlags = [
-    "--enable-userlib=yes"
-    "--enable-kernel=no"
-  ];
-  meta = with lib; {
-    description = "IgH EtherCAT Master for Linux";
-    homepage = "https://etherlab.org/master";
-    license = licenses.gpl2Only;
-  };
-}