Update benchmarking.rs

Author: JohnReedV

pallets/shield/src/benchmarking.rs

@@ -48,22 +48,13 @@ mod benches {
     /// Benchmark `announce_next_key`.
     #[benchmark]
     fn announce_next_key() {
-        // Generate a deterministic dev key in the host keystore (for benchmarks).
-        // Any 4-byte KeyTypeId works for generation; it does not affect AccountId derivation.
-        const KT: KeyTypeId = KeyTypeId(*b"benc");
-        let alice_pub: sr25519::Public = sr25519_generate(KT, Some("//Alice".as_bytes().to_vec()));
-        let alice_acc: AccountId32 = alice_pub.into();
-
-        // Make this account an Aura authority for the generic runtime.
-        seed_aura_authority_from_sr25519::<T>(&alice_pub);
-
         // Valid Kyber768 public key length per pallet check.
         const KYBER768_PK_LEN: usize = 1184;
         let public_key: BoundedVec<u8, ConstU32<2048>> = bounded_pk::<2048>(KYBER768_PK_LEN);
 
-        // Measure: dispatch the extrinsic.
+        // Dispatch as UNSIGNED: the pallet expects `ensure_none(origin)?;`.
         #[extrinsic_call]
-        announce_next_key(RawOrigin::Signed(alice_acc.clone()), public_key.clone());
+        announce_next_key(RawOrigin::None, public_key.clone());
 
         // Assert: NextKey should be set exactly.
         let stored = NextKey::<T>::get().expect("must be set by announce_next_key");