fix: Address compiler warning

`clone` is a noop here, and it doesn't look like making a copy of the
underlying array (which was presumably intended?) is neccessary.

substrate/frame/contracts/src/wasm/prepare.rs

@@ -80,7 +80,7 @@ impl LoadedModule {
 
 		let engine = Engine::new(&config);
 		let module =
-			Module::new(&engine, code.clone()).map_err(|_| "Can't load the module into wasmi!")?;
+			Module::new(&engine, code).map_err(|_| "Can't load the module into wasmi!")?;
 
 		// Return a `LoadedModule` instance with
 		// __valid__ module.