message: [SwiftREPL] Remove dead code. Found by inspection. NFCI.
diff: @@ -572,20 +572,6 @@ int SwiftREPL::CompleteCode(const std::string &current_code,
  matches.AppendString(root.data(), root.size());
  return 1;
  }
  - // llvm::StringRef prev_stem =
  - // completions.getPreviousStem();
  - // llvm::StringRef next_stem =
  - // completions.getNextStem();
  - // printf ("\nroot: '%*s'", (int)root.size(),
  - // root.data());
  - // printf ("\nprev_stem: '%*s'", (int)prev_stem.size(),
  - // prev_stem.data());
  - // printf ("\nnext_stem: '%*s'", (int)next_stem.size(),
  - // next_stem.data());
  - // printf ("\nvalid: %i", completions.isValid());
  - // printf ("\nempty: %i", completions.isEmpty());
  - // printf ("\nunique: %i", completions.isUnique());
  -
  // Otherwise, advance through the completion state machine.
  const swift::CompletionState completion_state = completions.getState();
  switch (completion_state) {
  