Remove libc pin message (#16182)

This was resolved via #16044, but
this message wasn't removed at the time.

Author: epage

Cargo.toml

@@ -64,7 +64,7 @@ itertools = "0.14.0"
 jiff = { version = "0.2.15", default-features = false, features = [ "std" ] }
 jobserver = "0.1.34"
 lazycell = "1.3.0"
-libc = "0.2.174" # Please ensure in lockfile it stays as 0.2.174 until bytecodealliance/rustix#1496 resolved
+libc = "0.2.174"
 libgit2-sys = "0.18.2"
 libloading = "0.8.9"
 memchr = "2.7.6"