Remove unused getCommitTime function

default.nix

@@ -1,23 +1,10 @@
 { ldflags, version, pkgs ? import <nixpkgs> { }, proj ? pkgs.proj }:
 
-let
-  # Get commit timestamp at eval time (pure)
-  getCommitTime = 
-    if builtins.pathExists ./.git
-    then builtins.replaceStrings ["\n"] [""] (builtins.readFile (
-      pkgs.runCommand "git-commit-time" {} ''
-        ${pkgs.git}/bin/git -C ${./.} log -1 --format=%ct > $out
-      ''
-    ))
-    else "0";
-in
 pkgs.buildGoModule rec {
   inherit ldflags version;
   pname = "nidus-sync";
   src = ./.;
   
-  buildTime = getCommitTime;
-  
   meta = {
     description = "Nidus Sync";
     homepage = "https://github.com/Gleipnir-Technology/nidus-sync";