Revert "wallet: Comment out HDSeed and CHDChain persistence to disk"

This reverts commit b7f9a7ae02.

src/wallet/gtest/test_wallet_zkeys.cpp

@@ -288,7 +288,6 @@ TEST(wallet_zkeys_tests, WriteViewingKeyDirectToDB) {
 /**
  * This test covers methods on CWalletDB to load/save crypted z keys.
  */
-/* TODO: Uncomment during PR for #3388
 TEST(wallet_zkeys_tests, write_cryptedzkey_direct_to_db) {
     SelectParams(CBaseChainParams::TESTNET);
 
@@ -363,5 +362,4 @@ TEST(wallet_zkeys_tests, write_cryptedzkey_direct_to_db) {
     wallet2.GetSproutSpendingKey(paymentAddress2, keyOut);
     ASSERT_EQ(paymentAddress2, keyOut.address());
 }
-*/
 

src/wallet/wallet.cpp

@@ -1991,14 +1991,12 @@ bool CWallet::SetHDSeed(const HDSeed& seed)
         return true;
     }
 
-    /* TODO: Uncomment during PR for #3388
     {
         LOCK(cs_wallet);
         if (!IsCrypted()) {
             return CWalletDB(strWalletFile).WriteHDSeed(seed);
         }
     }
-    */
     return true;
 }
 
@@ -2012,7 +2010,6 @@ bool CWallet::SetCryptedHDSeed(const uint256& seedFp, const std::vector<unsigned
         return true;
     }
 
-    /* TODO: Uncomment during PR for #3388
     {
         LOCK(cs_wallet);
         if (pwalletdbEncryption)
@@ -2020,17 +2017,14 @@ bool CWallet::SetCryptedHDSeed(const uint256& seedFp, const std::vector<unsigned
         else
             return CWalletDB(strWalletFile).WriteCryptedHDSeed(seedFp, vchCryptedSecret);
     }
-    */
     return false;
 }
 
 void CWallet::SetHDChain(const CHDChain& chain, bool memonly)
 {
     LOCK(cs_wallet);
-    /* TODO: Uncomment during PR for #3388
     if (!memonly && fFileBacked && !CWalletDB(strWalletFile).WriteHDChain(chain))
         throw std::runtime_error(std::string(__func__) + ": writing chain failed");
-    */
 
     hdChain = chain;
 }