Companion for aura CompatibilityMode (#1803)

* Companion for aura CompatibilityMode

As no parachain was launched with the broken authority set change handling we don't need to expose
the compatibility mode.

* FMT

* update lockfile for {"substrate", "polkadot"}

Co-authored-by: parity-processbot <>

client/consensus/aura/src/lib.rs

@@ -143,6 +143,7 @@ where
 				telemetry,
 				block_proposal_slot_portion,
 				max_block_proposal_slot_portion,
+				compatibility_mode: sc_consensus_aura::CompatibilityMode::None,
 			},
 		);