message: add function to delete the wallet log
diff: @@ -67,6 +67,11 @@ impl LogLock {
  pub fn acquire_wallet_log_lock(wallet_path: PathBuf) -> Result<Self> {
  Ok(LogLock(Lock::lock(wallet_path.join(WALLET_LOG_FILE))?))
  }
  +
  + pub fn delete_wallet_log_lock(self, wallet_path: PathBuf) -> ::std::io::Result<()> {
  + let file = wallet_path.join(WALLET_LOG_FILE);
  + ::std::fs::remove_file(file)
  + }
  }
  /// Structure to read the Wallet Log one by one
  