From 6e950118a31fd6a85026d934fc6adb6255e47e23 Mon Sep 17 00:00:00 2001
From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
Date: Fri, 23 Oct 2020 19:51:19 +0300
Subject: qt, wallet: Remove unused AskPassphraseDialog::Decrypt

Co-authored-by: Sehyun Chung <sehyun@berkeley.edu>
---
 src/qt/askpassphrasedialog.cpp | 22 ----------------------
 src/qt/askpassphrasedialog.h   |  1 -
 src/qt/walletview.cpp          |  2 +-
 3 files changed, 1 insertion(+), 24 deletions(-)

diff --git a/src/qt/askpassphrasedialog.cpp b/src/qt/askpassphrasedialog.cpp
index 3d1963b6e6..ce5fa03bb2 100644
--- a/src/qt/askpassphrasedialog.cpp
+++ b/src/qt/askpassphrasedialog.cpp
@@ -58,14 +58,6 @@ AskPassphraseDialog::AskPassphraseDialog(Mode _mode, QWidget *parent, SecureStri
             ui->passEdit3->hide();
             setWindowTitle(tr("Unlock wallet"));
             break;
-        case Decrypt:   // Ask passphrase
-            ui->warningLabel->setText(tr("This operation needs your wallet passphrase to decrypt the wallet."));
-            ui->passLabel2->hide();
-            ui->passEdit2->hide();
-            ui->passLabel3->hide();
-            ui->passEdit3->hide();
-            setWindowTitle(tr("Decrypt wallet"));
-            break;
         case ChangePass: // Ask old passphrase + new passphrase x2
             setWindowTitle(tr("Change passphrase"));
             ui->warningLabel->setText(tr("Enter the old passphrase and new passphrase for the wallet."));
@@ -176,17 +168,6 @@ void AskPassphraseDialog::accept()
             QMessageBox::critical(this, tr("Wallet unlock failed"), e.what());
         }
         break;
-    case Decrypt:
-        if(!model->setWalletEncrypted(false, oldpass))
-        {
-            QMessageBox::critical(this, tr("Wallet decryption failed"),
-                                  tr("The passphrase entered for the wallet decryption was incorrect."));
-        }
-        else
-        {
-            QDialog::accept(); // Success
-        }
-        break;
     case ChangePass:
         if(newpass1 == newpass2)
         {
@@ -221,9 +202,6 @@ void AskPassphraseDialog::textChanged()
         acceptable = !ui->passEdit2->text().isEmpty() && !ui->passEdit3->text().isEmpty();
         break;
     case Unlock: // Old passphrase x1
-    case Decrypt:
-        acceptable = !ui->passEdit1->text().isEmpty();
-        break;
     case ChangePass: // Old passphrase x1, new passphrase x2
         acceptable = !ui->passEdit1->text().isEmpty() && !ui->passEdit2->text().isEmpty() && !ui->passEdit3->text().isEmpty();
         break;
diff --git a/src/qt/askpassphrasedialog.h b/src/qt/askpassphrasedialog.h
index 9557e72936..f3ba882277 100644
--- a/src/qt/askpassphrasedialog.h
+++ b/src/qt/askpassphrasedialog.h
@@ -26,7 +26,6 @@ public:
         Encrypt,    /**< Ask passphrase twice and encrypt */
         Unlock,     /**< Ask passphrase and unlock */
         ChangePass, /**< Ask old passphrase + new passphrase twice */
-        Decrypt     /**< Ask passphrase and decrypt wallet */
     };
 
     explicit AskPassphraseDialog(Mode mode, QWidget *parent, SecureString* passphrase_out = nullptr);
diff --git a/src/qt/walletview.cpp b/src/qt/walletview.cpp
index 2fc883a5f5..e6127332ee 100644
--- a/src/qt/walletview.cpp
+++ b/src/qt/walletview.cpp
@@ -262,7 +262,7 @@ void WalletView::encryptWallet(bool status)
 {
     if(!walletModel)
         return;
-    AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt : AskPassphraseDialog::Decrypt, this);
+    AskPassphraseDialog dlg(AskPassphraseDialog::Encrypt, this);
     dlg.setModel(walletModel);
     dlg.exec();
 
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