diff --git a/pkgs/build-support/rust/default.nix b/pkgs/build-support/rust/default.nix
index 387c7904db09..f42f951680f7 100644
--- a/pkgs/build-support/rust/default.nix
+++ b/pkgs/build-support/rust/default.nix
@@ -14,9 +14,6 @@
 , cargoUpdateHook ? ""
 , cargoDepsHook ? ""
 , cargoBuildFlags ? []
-  # Please set to true on any Rust package updates. Once all packages set this
-  # to true, we will delete and make it the default. For details, see the Rust
-  # section on the manual and ./README.md.
 , legacyCargoFetcher ? false
 , buildType ? "release"
 , meta ? {}