deno: remove obsolete LTO fix

Reverts https://github.com/NixOS/nixpkgs/pull/416177/commits/abc9b18038ae082c05ad2c0cbab1506fa2ec4d87, nixpkgs LLVM contains the fix for the original issue

pkgs/by-name/de/deno/package.nix

@@ -57,16 +57,7 @@ rustPlatform.buildRustPackage (finalAttrs: {
   postPatch = ''
     # Use patched nixpkgs libffi in order to fix https://github.com/libffi/libffi/pull/857
     tomlq -ti '.workspace.dependencies.libffi = { "version": .workspace.dependencies.libffi, "features": ["system"] }' Cargo.toml
-  ''
-  +
-    lib.optionalString
-      (stdenv.hostPlatform.isLinux || (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isx86_64))
-      ''
-        # LTO crashes with the latest Rust + LLVM combination.
-        # https://github.com/rust-lang/rust/issues/141737
-        # TODO: remove this once LLVM is upgraded to 20.1.7
-        tomlq -ti '.profile.release.lto = false' Cargo.toml
-      '';
+  '';
 
   buildInputs = [
     libffi