message: walletdb: Remove unused static functions from walletdb.h
  VerifyEnvironment and VerifyDatabaseFile were removed, but their
  declarations weren't. Remove those.
diff: @@ -261,10 +261,6 @@ public:
  DBErrors ZapSelectTx(std::vector<uint256>& vHashIn, std::vector<uint256>& vHashOut);
  /* Function to determine if a certain KV/key-type is a key (cryptographical key) type */
  static bool IsKeyType(const std::string& strType);
  - /* verifies the database environment */
  - static bool VerifyEnvironment(const fs::path& wallet_path, bilingual_str& errorStr);
  - /* verifies the database file */
  - static bool VerifyDatabaseFile(const fs::path& wallet_path, bilingual_str& errorStr);
  //! write the hdchain model (external chain child index counter)
  bool WriteHDChain(const CHDChain& chain);
  