build: remove unused anyhow dependency

third_party/crates/anyhow-1.0.104/tests/ui/chained-comparison.rs

@@ -1,8 +0,0 @@
-use anyhow::{ensure, Result};
-
-fn main() -> Result<()> {
-    // `ensure!` must not partition this into `(false) == (false == true)`
-    // because Rust doesn't ordinarily allow this form of expression.
-    ensure!(false == false == true);
-    Ok(())
-}