diff --git a/src/string_db.cc b/src/string_db.cc
deleted file mode 100644
index 0abb2720..00000000
--- a/src/string_db.cc
+++ /dev/null
@@ -1,40 +0,0 @@
-#if false
-#include "string_db.h"
-
-StringStorage::~StringStorage() {
-  if (owns_str) {
-    free((void*)str);
-    str = nullptr;
-    owns_str= false;
-  }
-}
-
-StringStorage StringStorage::CreateUnowned(const char* data, size_t len) {
-  StringStorage result;
-  result.str = data;
-  result.len = len;
-  result.owns_str = false;
-  return result;
-}
-
-void StringStorage::Copy() const {
-  // Copy
-  char* new_str = (char*)malloc(len + 1);
-  strncpy(new_str, str, len + 1);
-  // Assign
-  str = new_str;
-  owns_str = true;
-}
-
-bool StringStorage::operator==(const StringStorage& that) const {
-  return len == that.len && strcmp(str, that.str) == 0;
-}
-
-bool StringStorage::operator!=(const StringStorage& that) const {
-  return !(*this == that);
-}
-
-bool StringStorage::operator<(const StringStorage& that) const {
-  return strcmp(str, that.str);
-}
-#endif
\ No newline at end of file
diff --git a/src/string_db.h b/src/string_db.h
deleted file mode 100644
index 14f1d403..00000000
--- a/src/string_db.h
+++ /dev/null
@@ -1,154 +0,0 @@
-#if false
-#pragma once
-
-#include "buffer.h"
-#include "utils.h"
-
-#include <clang-c/Index.h>
-
-#include <cassert>
-#include <cstring>
-#include <cstdint>
-#include <functional>
-#include <unordered_set>
-#include <string>
-
-
-template <typename T>
-struct StringView {
-  StringView();
-  StringView(const StringView& that);
-  StringView(const char* str, size_t len);
-
-  bool operator==(const StringView& that) const;
-  bool operator!=(const StringView& that) const;
-  bool operator<(const StringView& that) const;
-  StringView& operator=(const StringView& that);
-
-  std::string AsString() const;
-
-  size_t len;
-  const char* str;
-};
-// See MAKE_HASHABLE for QueryUsr, IndexUsr
-
-struct StringStorage {
-  ~StringStorage();
-
-  static StringStorage CreateUnowned(const char* str, size_t len);
-  void Copy() const;
-
-  bool operator==(const StringStorage& that) const;
-  bool operator!=(const StringStorage& that) const;
-  bool operator<(const StringStorage& that) const;
-
-  size_t len;
-  mutable const char* str;
-  mutable bool owns_str;
-};
-MAKE_HASHABLE(StringStorage, t.len, t.str);
-
-template <typename T>
-struct StringDb {
-  TStringView<T> GetString(const char* str, size_t len);
-  TStringView<T> GetString(const std::string& str);
-  TStringView<T> GetString(CXString cx_string);
-
-  std::unordered_set<StringStorage> data_;
-};
-
-
-
-
-
-
-
-
-struct _DummyQueryType {};
-struct _DummyIndexType {};
-
-using QueryUsr = StringView<_DummyQueryType>;
-using QueryStringDb = StringDb<_DummyQueryType>;
-
-using IndexUsr = StringView<_DummyIndexType>;
-using IndexStringDb = StringDb<_DummyIndexType>;
-
-
-
-// TODO: See if we can move this next to StringView definition.
-MAKE_HASHABLE(QueryUsr, t.len, t.str);
-MAKE_HASHABLE(IndexUsr, t.len, t.str);
-
-
-
-
-
-
-
-
-
-
-
-
-
-template <typename T>
-StringView<T>::StringView() : len(0), str(nullptr) {}
-
-template <typename T>
-StringView<T>::StringView(const StringView& that) : len(that.len), str(that.str) {}
-
-template <typename T>
-StringView<T>::StringView(const char* str, size_t len) : len(len), str(str) {}
-
-template <typename T>
-bool StringView<T>::operator==(const StringView& that) const {
-  return len == that.len && strcmp(str, that.str) == 0;
-}
-
-template <typename T>
-bool StringView<T>::operator!=(const StringView& that) const {
-  return !(*this == that);
-}
-
-template <typename T>
-bool StringView<T>::operator<(const StringView& that) const {
-  return strcmp(str, that.str);
-}
-
-template <typename T>
-StringView& StringView<T>::operator=(const StringView& that) {
-  len = that.len;
-  str = that.str;
-  return *this;
-}
-
-template <typename T>
-std::string StringView<T>::AsString() const {
-  return std::string(str, len);
-}
-
-template <typename T>
-TStringView<T> StringDb<T>::GetString(const char* str, size_t len) {
-  StringStorage lookup = StringStorage::CreateUnowned(str, len);
-
-  auto it = data_.insert(lookup);
-  if (it.second)
-    it.first->Copy();
-
-  return TStringView<T>(it.first->str, it.first->len);
-}
-
-template <typename T>
-TStringView<T> StringDb<T>::GetString(const std::string& str) {
-  return GetString(str.c_str());
-}
-
-template <typename T>
-TStringView<T> StringDb<T>::GetString(CXString cx_string) {
-  assert(cx_string.data);
-  const char* str = clang_getCString(cx_string);
-  StringView result = GetString(str);
-  clang_disposeString(cx_string);
-  return result;
-}
-#endif
\ No newline at end of file