Remove allow pragma now that it is unnecessary

crates/fuzzing/tests/regressions.rs

@@ -5,8 +5,7 @@
 //! use the Wasm binary by including it via
 //! `include_bytes!("./regressions/some-descriptive-name.wasm")`.
 
-#[allow(unused_imports)] // Until we actually have some regression tests...
-use wasmtime_fuzzing::*;
+use wasmtime_fuzzing::oracles;
 
 #[test]
 fn instantiate_empty_module() {