diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 545dce582ada..971c7a69a5f6 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -15707,15 +15707,6 @@ with pkgs;
   gccFun = callPackage ../development/compilers/gcc;
   gcc-unwrapped = gcc.cc;
 
-  disable-warnings-if-gcc13 = pkg:
-    if (pkg.stdenv.cc.cc.isGNU or false && lib.versionAtLeast pkg.stdenv.cc.cc.version "13.0")
-    then pkg.overrideAttrs(previousAttrs: previousAttrs // {
-      env = previousAttrs.env or {} // {
-        NIX_CFLAGS_COMPILE = (previousAttrs.env.NIX_CFLAGS_COMPILE or "") + " -Wno-error";
-      };
-    })
-    else pkg;
-
   pin-to-gcc12-if-gcc13 = pkg:
     if !(lib.isDerivation pkg) || !(pkg?override) then pkg else
     pkg.override (previousArgs: