diff --git a/rust-toolchain b/rust-toolchain
index 77211c4..a25e7e0 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1,9 +1,3 @@
-# If you see this, run `rustup self update` to get rustup 1.23 or newer.
-
-# NOTE: above comment is for older `rustup` (before TOML support was added),
-# which will treat the first line as the toolchain name, and therefore show it
-# to the user in the error, instead of "error: invalid channel name '[toolchain]'".
-
 [toolchain]
 channel = "nightly"