message: Remove duplicate declaration from D41550; NFC
diff: @@ -176,10 +176,6 @@ private:
  const llvm::pdb::PDBSymbolCompiland &cu,
  llvm::DenseMap<uint32_t, uint32_t> &index_map) const;
  - void FindTypesByRegex(const lldb_private::RegularExpression &regex,
  - uint32_t max_matches,
  - lldb_private::TypeMap &types);
  -
  void FindTypesByName(const std::string &name, uint32_t max_matches,
  lldb_private::TypeMap &types);
  