Revert "chore: move all node-api impl to ext (#24662)" (#24680)

This reverts commit d00fbd70258a77a267fe20bdd2c4a028c799b693.

Reverting because, it caused a failure during v1.45.3 publish:

https://github.com/denoland/deno/actions/runs/10048730693/job/27773718095

1 files changed, 0 insertions, 31 deletions

diff --git a/ext/napi/sym/lib.rs b/ext/napi/sym/lib.rs
deleted file mode 100644
index 21edaa289..000000000
--- a/ext/napi/sym/lib.rs
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
-
-use proc_macro::TokenStream;
-use quote::quote;
-use serde::Deserialize;
-
-static NAPI_EXPORTS: &str = include_str!("./symbol_exports.json");
-
-#[derive(Deserialize)]
-struct SymbolExports {
-  pub symbols: Vec<String>,
-}
-
-#[proc_macro_attribute]
-pub fn napi_sym(_attr: TokenStream, item: TokenStream) -> TokenStream {
-  let func = syn::parse::<syn::ItemFn>(item).expect("expected a function");
-
-  let exports: SymbolExports =
-    serde_json::from_str(NAPI_EXPORTS).expect("failed to parse exports");
-  let name = &func.sig.ident;
-  assert!(
-    exports.symbols.contains(&name.to_string()),
-    "ext/napi/sym/symbol_exports.json is out of sync!"
-  );
-
-  TokenStream::from(quote! {
-    crate::napi_wrap! {
-      #func
-    }
-  })
-}