Revert "fix: remove updater if it is not used"

This reverts commit 2ff0aa09e35eb6910ef0a030ea41f84a1ed95782.

Signed-off-by: Sefa Eyeoglu <contact@scrumplex.net>

launcher/ui/pages/global/LauncherPage.h

@@ -90,7 +90,6 @@ slots:
     void on_iconsDirBrowseBtn_clicked();
     void on_metadataDisableBtn_clicked();
 
-#ifdef LAUNCHER_WITH_UPDATER
     /*!
      * Updates the list of update channels in the combo box.
      */
@@ -101,13 +100,13 @@ slots:
      */
     void refreshUpdateChannelDesc();
 
-    void updateChannelSelectionChanged(int index);
-#endif
     /*!
      * Updates the font preview
      */
     void refreshFontPreview();
 
+    void updateChannelSelectionChanged(int index);
+
 private:
     Ui::LauncherPage *ui;