message: delete dead code
  Summary: This is a behavior-preserving change.
diff: @@ -23,16 +23,6 @@ namespace obfuscate_utils {
  void compute_identifier(int value, std::string* res);
  } // namespace obfuscate_utils
  -// Type for the map of descriptor -> [newname -> oldname]
  -// This map is used for reverse lookup to find naming collisions
  -using NameMapping =
  - std::unordered_map<std::string,
  - std::unordered_map<std::string, std::string>>;
  -
  -// Renames a field in the Dex
  -void rename_field(DexField* field, const std::string& new_name);
  -void rename_method(DexMethod* method, const std::string& new_name);
  -
  // Whether or not the configs allow for us to obfuscate the member
  // We don't want to obfuscate seeds. Keep members shouldn't be obfuscated
  // unless we are explicitly told to do so with the allowobfuscation flag
  @@ -513,21 +503,13 @@ class DexElemManager {
  RefCtrFn ref_getter_fn;
  ElemCtrFn elemCtr;
  - bool mark_all_unrenamable;
  -
  public:
  DexElemManager(ElemCtrFn elem_ctr, SigGetFn get_sig, RefCtrFn ref_ctr)
  - : sig_getter_fn(get_sig),
  - ref_getter_fn(ref_ctr),
  - elemCtr(elem_ctr),
  - mark_all_unrenamable(false) {}
  + : sig_getter_fn(get_sig), ref_getter_fn(ref_ctr), elemCtr(elem_ctr) {}
  // NOLINTNEXTLINE(performance-noexcept-move-constructor)
  DexElemManager(DexElemManager&& other) = default;
  virtual ~DexElemManager() {}
  - // void lock_elements() { mark_all_unrenamable = true; }
  - // void unlock_elements() { mark_all_unrenamable = false; }
  -
  inline bool contains_elem(DexType* cls, K sig, const DexString* name) {
  return elements.count(cls) > 0 && elements[cls].count(sig) > 0 &&
  elements[cls][sig].count(name) > 0;
  @@ -541,9 +523,6 @@ class DexElemManager {
  inline DexNameWrapper<T>* emplace(T elem) {
  elements[elem->get_class()][sig_getter_fn(elem)][elem->get_name()] =
  std::unique_ptr<DexNameWrapper<T>>(elemCtr(elem));
  - if (mark_all_unrenamable)
  - elements[elem->get_class()][sig_getter_fn(elem)][elem->get_name()]
  - ->mark_unrenamable();
  return elements[elem->get_class()][sig_getter_fn(elem)][elem->get_name()]
  .get();
  }
  