[host/init_multiuse] fixing leftover warning from hyperlight-dev#494

Signed-off-by: danbugs <danilochiarlone@gmail.com>

Author: danbugs

Cargo.lock

@@ -16,6 +16,7 @@ limitations under the License.
 
 use std::sync::{Arc, Mutex};
 
+#[cfg(feature = "fuzzing")]
 use hyperlight_common::flatbuffer_wrappers::function_types::{
     ParameterValue, ReturnType, ReturnValue,
 };