chore: removed opencode

pkgs/default.nix

@@ -1,6 +1,6 @@
 {
   pkgs,
-  inputs ? null,
+  inputs,
   ...
 }: {
   # Custom packages registry
@@ -22,7 +22,5 @@
   zellij-ps = pkgs.callPackage ./zellij-ps {};
 
   # Imported from flake inputs
-  opencode = inputs.opencode.packages.${pkgs.system}.opencode;
   opencode-desktop = pkgs.callPackage ./opencode-desktop {inherit inputs;};
-  openspec = inputs.openspec.packages.${pkgs.system}.default;
 }