Allow using system node (#18172)

Release Notes:

- (Potentially breaking change) Zed will now use the node installed on
your $PATH (if it is more recent than v18) instead of downloading its
own. You can disable the new behavior with `{"node":
{"disable_path_lookup": true}}` in your settings. We do not yet use
system/project-local node_modules.

---------

Co-authored-by: Mikayla <mikayla@zed.dev>

crates/project/src/lsp_store.rs

@@ -17,7 +17,7 @@ use async_trait::async_trait;
 use client::{proto, TypedEnvelope};
 use collections::{btree_map, BTreeMap, HashMap, HashSet};
 use futures::{
-    future::{join_all, BoxFuture, Shared},
+    future::{join_all, Shared},
     select,
     stream::FuturesUnordered,
     AsyncWriteExt, Future, FutureExt, StreamExt,
@@ -27,7 +27,7 @@ use gpui::{
     AppContext, AsyncAppContext, Context, Entity, EventEmitter, Model, ModelContext, PromptLevel,
     Task, WeakModel,
 };
-use http_client::{AsyncBody, HttpClient, Request, Response, Uri};
+use http_client::{BlockedHttpClient, HttpClient};
 use language::{
     language_settings::{
         all_language_settings, language_settings, AllLanguageSettings, FormatOnSave, Formatter,
@@ -7979,35 +7979,6 @@ impl LspAdapterDelegate for LocalLspAdapterDelegate {
     }
 }
 
-struct BlockedHttpClient;
-
-impl HttpClient for BlockedHttpClient {
-    fn send(
-        &self,
-        _req: Request<AsyncBody>,
-    ) -> BoxFuture<'static, Result<Response<AsyncBody>, anyhow::Error>> {
-        Box::pin(async {
-            Err(std::io::Error::new(
-                std::io::ErrorKind::PermissionDenied,
-                "ssh host blocked http connection",
-            )
-            .into())
-        })
-    }
-
-    fn proxy(&self) -> Option<&Uri> {
-        None
-    }
-
-    fn send_with_redirect_policy(
-        &self,
-        req: Request<AsyncBody>,
-        _: bool,
-    ) -> BoxFuture<'static, Result<Response<AsyncBody>, anyhow::Error>> {
-        self.send(req)
-    }
-}
-
 struct SshLspAdapterDelegate {
     lsp_store: WeakModel<LspStore>,
     worktree: worktree::Snapshot,