Auto merge of #5489 - dwijnand:drop-GitSource-TODO, r=matklad

Drop PathSource TODO in GitSource

This effort was started in de69447,
and looks (to me) to be resolved at this point.

Author: bors

src/cargo/sources/git/source.rs

@@ -11,8 +11,6 @@ use util::hex::short_hash;
 use sources::PathSource;
 use sources::git::utils::{GitRemote, GitRevision};
 
-/* TODO: Refactor GitSource to delegate to a PathSource
- */
 pub struct GitSource<'cfg> {
     remote: GitRemote,
     reference: GitReference,