diff --git a/src/util/helpers.cpp b/src/util/helpers.cpp
index e0d3c10..0163f4e 100644
--- a/src/util/helpers.cpp
+++ b/src/util/helpers.cpp
@@ -25,12 +25,6 @@
 #include <KAboutData>
 #include <KLocalizedString>
 
-#include <QAction>
-#include <QMenu>
-#include <QHeaderView>
-#include <QRect>
-#include <QTreeWidget>
-
 void registerMetaTypes()
 {
     qRegisterMetaType<Operation*>("Operation*");
@@ -42,33 +36,6 @@ bool caseInsensitiveLessThan(const QString& s1, const QString& s2)
     return s1.toLower() < s2.toLower();
 }
 
-void showColumnsContextMenu(const QPoint& p, QTreeWidget& tree)
-{
-    QMenu headerMenu(xi18nc("@title:menu", "Columns"));
-
-    QHeaderView* header = tree.header();
-
-    for (qint32 i = 0; i < tree.model()->columnCount(); i++) {
-        const int idx = header->logicalIndex(i);
-        const QString text = tree.model()->headerData(idx, Qt::Horizontal).toString();
-
-        QAction* action = headerMenu.addAction(text);
-        action->setCheckable(true);
-        action->setChecked(!header->isSectionHidden(idx));
-        action->setData(idx);
-        action->setEnabled(idx > 0);
-    }
-
-    QAction* action = headerMenu.exec(tree.header()->mapToGlobal(p));
-
-    if (action != nullptr) {
-        const bool hidden = !action->isChecked();
-        tree.setColumnHidden(action->data().toInt(), hidden);
-        if (!hidden)
-            tree.resizeColumnToContents(action->data().toInt());
-    }
-}
-
 bool isMounted(const QString& deviceNode)
 {
     ExternalCommand cmd(QStringLiteral("lsblk"),
diff --git a/src/util/helpers.h b/src/util/helpers.h
index 1b38633..c529a69 100644
--- a/src/util/helpers.h
+++ b/src/util/helpers.h
@@ -29,19 +29,11 @@ class KAboutData;
 
 class Partition;
 class QString;
-class QPoint;
-class QTreeWidget;
 
 LIBKPMCORE_EXPORT void registerMetaTypes();
-
 LIBKPMCORE_EXPORT bool caseInsensitiveLessThan(const QString& s1, const QString& s2);
-
-LIBKPMCORE_EXPORT void showColumnsContextMenu(const QPoint& p, QTreeWidget& tree);
-
 LIBKPMCORE_EXPORT bool checkAccessibleDevices();
-
 LIBKPMCORE_EXPORT bool isMounted(const QString& deviceNode);
-
 LIBKPMCORE_EXPORT KAboutData aboutKPMcore();
 
 /** Pointer to the file system (which might be inside LUKS container) contained in the partition