python3Packages.jaxlib: clean up apple_sdk stubs

Note: jaxlib currently points to jaxlib-bin so this code is not utilized
for regular jaxlib installations.

Signed-off-by: Ihar Hrachyshka <ihar.hrachyshka@gmail.com>

pkgs/development/python-modules/jaxlib/default.nix

@@ -15,7 +15,6 @@
   cython,
   fetchFromGitHub,
   git,
-  darwin,
   jsoncpp,
   nsync,
   openssl,
@@ -409,10 +408,8 @@ let
       );
 
       # Note: we cannot do most of this patching at `patch` phase as the deps
-      # are not available yet. Framework search paths aren't added by bintools
-      # hook. See https://github.com/NixOS/nixpkgs/pull/41914.
+      # are not available yet.
       preBuild = lib.optionalString effectiveStdenv.hostPlatform.isDarwin ''
-        export NIX_LDFLAGS+=" -F${darwin.apple_sdk.frameworks.IOKit}/Library/Frameworks"
         substituteInPlace ../output/external/rules_cc/cc/private/toolchain/osx_cc_wrapper.sh.tpl \
           --replace "/usr/bin/install_name_tool" "${cctools}/bin/install_name_tool"
         substituteInPlace ../output/external/rules_cc/cc/private/toolchain/unix_cc_configure.bzl \