Update cleanup.sh

Signed-off-by: Barnabas Busa <barnabas.busa@ethereum.org>

Author: barnabasbusa

.hack/devnet/cleanup.sh

@@ -4,4 +4,4 @@ ENCLAVE_NAME="${ENCLAVE_NAME:-assertoor}"
 kurtosis enclave rm -f "$ENCLAVE_NAME"
 
 echo "Cleaning up generated files..."
-rm -f "${__dir}"/generated-*
+rm -f ${__dir}/generated-*