Wallet: Add warning comments and assert to CWallet::DelAddressBook
Wallet: Add warning comments and assert to CWallet::DelAddressBook

Former-commit-id: 4dba3232f2584db84de0acbd23b69920cfaa40fb
syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin