message: Remove redundant conditional compilation
diff: @@ -34,10 +34,10 @@ use ckb_vm::{
  };
  #[cfg(has_asm)]
  -use ckb_vm::machine::asm::AsmMachine;
  +use ckb_vm::machine::asm::AsmMachine as VerifyMachine;
  #[cfg(not(has_asm))]
  -use ckb_vm::TraceMachine;
  +use ckb_vm::TraceMachine as VerifyMachine;
  use std::cell::RefCell;
  use std::collections::{BTreeMap, HashMap};
  @@ -903,12 +903,7 @@ impl<'a, DL: CellDataProvider + HeaderProvider> TransactionScriptsVerifier<'a, D
  .into_iter()
  .fold(machine_builder, |builder, syscall| builder.syscall(syscall));
  let default_machine = machine_builder.build();
  -
  - #[cfg(has_asm)]
  - let machine = AsmMachine::new(default_machine);
  - #[cfg(not(has_asm))]
  - let machine = TraceMachine::new(default_machine);
  -
  + let machine = VerifyMachine::new(default_machine);
  Ok(machine)
  }
  