remote_server: Remove dependency on libssl and libcrypto (#15446)

Fixes: #15599
Release Notes:

- N/A

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

crates/git_hosting_providers/Cargo.toml

@@ -18,7 +18,6 @@ futures.workspace = true
 git.workspace = true
 gpui.workspace = true
 http_client.workspace = true
-isahc.workspace = true
 regex.workspace = true
 serde.workspace = true
 serde_json.workspace = true