--- a/rust/hg-core/Cargo.toml	Sun Sep 13 22:14:25 2020 -0400
+++ b/rust/hg-core/Cargo.toml	Thu Apr 08 21:46:54 2021 +0200
@@ -41,9 +41,3 @@
 clap = "*"
 pretty_assertions = "0.6.1"
 tempfile = "3.1.0"
-
-[features]
-# Use a (still unoptimized) tree for the dirstate instead of the current flat
-# dirstate. This is not yet recommended for performance reasons. A future
-# version might make it the default, or make it a runtime option.
-dirstate-tree = []