floss: Remove the wrong "#[allow(unused)]"

This was missed in https://r.android.com/3288142.

Bug: 331817295
Test: mmm packages/modules/Bluetooth
Flag: EXEMPT, Floss-only change
Change-Id: I50dbd6277ccfc5ed54b1ce9f42dc9c1e6b8b05de

parent 3f8be643

system/gd/rust/linux/stack/src/bluetooth_admin.rs

+0 −2

Original line number	Diff line number	Diff line
		@@ -422,8 +422,6 @@ impl RPCProxy for BluetoothDeviceCallbacks {
		mod tests {
		use crate::bluetooth_admin::{BluetoothAdmin, BluetoothAdminPolicyHelper};
		use bt_topshim::btif::Uuid;

		#[allow(unused)]
		use serde_json::{json, Value};

		#[test]