Restore workspace-wide clippy

Fixes accumulated errors in the Substrate code. Modifies the runtime build to
work with a modern clippy. Removes e2e tests from the workspace.

substrate/abi/src/in_instructions.rs

@@ -20,7 +20,7 @@ pub enum Event {
     network: NetworkId,
     publishing_session: Session,
     id: u32,
-    external_network_block_hash: [u8; 32],
+    external_network_block_hash: BlockHash,
     in_instructions_hash: [u8; 32],
     in_instruction_results: bitvec::vec::BitVec<u8, bitvec::order::Lsb0>,
   },