no "Share" tab without WITH_XC_KEESHARE

if KeePassXC is compiled with WITH_XC_KEESHARE=OFF, the "Share" tab of
the EntryPreviewWidget for groups is removed from the GUI completely.

closes #3619.

src/gui/EntryPreviewWidget.cpp

@@ -72,6 +72,10 @@ EntryPreviewWidget::EntryPreviewWidget(QWidget* parent)
     m_ui->groupCloseButton->setIcon(filePath()->icon("actions", "dialog-close"));
     connect(m_ui->groupCloseButton, SIGNAL(clicked()), SLOT(hide()));
     connect(m_ui->groupTabWidget, SIGNAL(tabBarClicked(int)), SLOT(updateTabIndexes()), Qt::QueuedConnection);
+
+#if !defined(WITH_XC_KEESHARE)
+    removeTab(m_ui->groupTabWidget, m_ui->groupShareTab);
+#endif
 }
 
 EntryPreviewWidget::~EntryPreviewWidget()
@@ -376,6 +380,13 @@ void EntryPreviewWidget::openEntryUrl()
     }
 }
 
+void EntryPreviewWidget::removeTab(QTabWidget* tabWidget, QWidget* widget)
+{
+    const int tabIndex = tabWidget->indexOf(widget);
+    Q_ASSERT(tabIndex != -1);
+    tabWidget->removeTab(tabIndex);
+}
+
 void EntryPreviewWidget::setTabEnabled(QTabWidget* tabWidget, QWidget* widget, bool enabled)
 {
     const int tabIndex = tabWidget->indexOf(widget);

src/gui/EntryPreviewWidget.h

@@ -67,6 +67,7 @@ private slots:
     void openEntryUrl();
 
 private:
+    void removeTab(QTabWidget* tabWidget, QWidget* widget);
     void setTabEnabled(QTabWidget* tabWidget, QWidget* widget, bool enabled);
 
     static QPixmap preparePixmap(const QPixmap& pixmap, int size);