Remove unused configuration and commented code

Eliminated obsolete systemPath entry from Darwin services default configuration. Removed unused foreign-env plugin and commented code related to shell initialization in Fish configuration. Additionally, commented out unnecessary SSH configuration options in user-specific settings.

homes/aarch64-darwin/harald@m4/default.nix

@@ -12,8 +12,8 @@
   };
 
   programs.ssh.extraConfig = ''
-    UseKeychain yes
+    #UseKeychain yes
-    AddKeysToAgent yes
+    #AddKeysToAgent yes
     IdentityFile ~/.ssh/id_ed25519
   '';
 

modules/darwin/services/base/default.nix

@@ -49,8 +49,6 @@ in
       fish.enable = true;
     };
 
-    environment.systemPath = [ /run/current-system/sw/bin ];
-
     programs = {
       bash = {
         ## shellInit = ''

modules/home/cli-apps/fish/default.nix

@@ -33,31 +33,6 @@ in
           end
         end
       '';
-
-      plugins = [
-        {
-          name = "foreign-env";
-          src = pkgs.fetchFromGitHub {
-            owner = "oh-my-fish";
-            repo = "plugin-foreign-env";
-            rev = "dddd9213272a0ab848d474d0cbde12ad034e65bc";
-            sha256 = "00xqlyl3lffc5l0viin1nyp819wf81fncqyz87jx8ljjdhilmgbs";
-          };
-        }
-      ];
-
-      #      shellInit =
-      #        ''
-      #          # nix
-      #          if test -e /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh
-      #              fenv source /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh
-      #          end
-      #
-      #          # home-manager
-      #          if test -e $HOME/.nix-profile/etc/profile.d/hm-session-vars.sh
-      #              fenv source $HOME/.nix-profile/etc/profile.d/hm-session-vars.sh
-      #          end
-      #        '';
     };
   };
 }