message: Remove unused variables. NFC
diff: @@ -318,8 +318,6 @@ TEST_F(GDBRemoteCommunicationClientTest, SendSignalsToIgnore) {
  if (HasFailure())
  return;
  - const lldb::tid_t tid = 0x47;
  - const uint32_t reg_num = 4;
  std::future<Status> result = std::async(std::launch::async, [&] {
  return client.SendSignalsToIgnore({2, 3, 5, 7, 0xB, 0xD, 0x11});
  });
  