Replace KLineEdit with QLineEdit

The password field uses none of the KLineEdit features like completion,
so QLineEdit suffices.

CMakeLists.txt

@@ -29,7 +29,6 @@ find_package(Qt5 ${QT_MIN_VERSION} REQUIRED COMPONENTS Core DBus Widgets X11Extr
 
 find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS
     I18n
-    Completion
     Config
     CoreAddons
     Crash

krfb/CMakeLists.txt

@@ -93,7 +93,6 @@ target_link_libraries (krfb
                        ${X11_X11_LIB}
                        ${X11_Xdamage_LIB}
                        Qt5::Network
-                       KF5::Completion
                        KF5::CoreAddons
                        KF5::DBusAddons
                        KF5::DNSSD

krfb/mainwindow.cpp

@@ -21,7 +21,6 @@
 #include <KMessageWidget>
 #include <KStandardAction>
 #include <KActionCollection>
-#include <KLineEdit>
 #include <KNewPasswordDialog>
 #include <KPluginLoader>
 #include <KPluginMetaData>
@@ -107,7 +106,7 @@ MainWindow::MainWindow(QWidget *parent)
     setAttribute(Qt::WA_DeleteOnClose, false);
 
     m_passwordEditable = false;
-    m_passwordLineEdit = new KLineEdit(this);
+    m_passwordLineEdit = new QLineEdit(this);
     m_passwordLineEdit->setVisible(false);
     m_passwordLineEdit->setAlignment(Qt::AlignHCenter);
 

krfb/mainwindow.h

@@ -15,7 +15,7 @@
 
 #include <KXmlGuiWindow>
 
-class KLineEdit;
+class QLineEdit;
 
 class MainWindow : public KXmlGuiWindow
 {
@@ -43,7 +43,7 @@ class MainWindow : public KXmlGuiWindow
     private:
         Ui::MainWidget m_ui;
         bool m_passwordEditable;
-        KLineEdit *m_passwordLineEdit;
+        QLineEdit *m_passwordLineEdit;
 };
 
 #endif