diff --git a/crates/typst-kit/src/package_downloads/git.rs b/crates/typst-kit/src/package_downloads/git.rs
index 6999eebf..d92544e7 100644
--- a/crates/typst-kit/src/package_downloads/git.rs
+++ b/crates/typst-kit/src/package_downloads/git.rs
@@ -1,24 +1,16 @@
-use std::cell::{RefCell, RefMut};
 use std::collections::VecDeque;
 use std::fmt::Debug;
-use std::fs;
-use std::io::{self, ErrorKind, Read};
-use std::ops::Deref;
-use std::path::{Path, PathBuf};
-use std::sync::Arc;
-use std::time::{Duration, Instant};
+use std::path::Path;
+use std::time::Instant;
 use auth_git2::GitAuthenticator;
 use crate::package_downloads::{
-    DownloadState, PackageDownloader, Progress, DEFAULT_NAMESPACE,
+    DownloadState, PackageDownloader, Progress,
 };
 use ecow::{eco_format, EcoString};
-use native_tls::{Certificate, TlsConnector};
-use once_cell::sync::OnceCell;
-use typst_library::diag::{bail, PackageError, PackageResult};
+use typst_library::diag::{PackageError, PackageResult};
 use typst_syntax::package::{PackageInfo, PackageSpec, VersionlessPackageSpec};
-use git2::{AutotagOption, FetchOptions, Progress as GitProgress, RemoteCallbacks};
-use git2::build::{CheckoutBuilder, RepoBuilder};
-use typst_library::html::tag::form;
+use git2::{FetchOptions, RemoteCallbacks};
+use git2::build::RepoBuilder;
 
 #[derive(Debug)]
 pub struct GitDownloader;
@@ -97,11 +89,9 @@ impl GitDownloader {
 impl PackageDownloader for GitDownloader {
     fn download_index(
         &self,
-        spec: &VersionlessPackageSpec,
+       _spec: &VersionlessPackageSpec,
     ) -> Result<Vec<PackageInfo>, EcoString> {
-
-        //todo ls-remote
-        todo!()
+        Err(eco_format!("Downloading index is not supported for git repositories"))
     }
 
     fn download(
diff --git a/crates/typst-kit/src/package_downloads/http.rs b/crates/typst-kit/src/package_downloads/http.rs
index d446508b..a1cb71df 100644
--- a/crates/typst-kit/src/package_downloads/http.rs
+++ b/crates/typst-kit/src/package_downloads/http.rs
@@ -63,15 +63,6 @@ impl HttpDownloader {
         }
     }
 
-    /// Crates a new downloader with the given user agent and certificate.
-    pub fn with_cert(user_agent: impl Into<EcoString>, cert: Certificate) -> Self {
-        Self {
-            user_agent: user_agent.into(),
-            cert_path: None,
-            cert: OnceCell::with_value(cert),
-        }
-    }
-
     /// Returns the certificate this client is using, if a custom certificate
     /// is used it is loaded on first access.
     ///