Not necessary to check pointer before deleting it

kcm/kcm.cpp

@@ -212,9 +212,7 @@ KCMNetworkmanagement::KCMNetworkmanagement(QWidget *parent, const QVariantList &
 KCMNetworkmanagement::~KCMNetworkmanagement()
 {
     delete m_handler;
-    if (m_tabWidget) {
-        delete m_tabWidget;
-    }
+    delete m_tabWidget;
     delete m_ui;
 }