Manager: Temporarily disable the system location option in the new machine wizard

src/qt/qt_vmmanager_addmachine.hpp

@@ -90,12 +90,16 @@ public:
     [[nodiscard]] int nextId() const override;
 private:
     QLineEdit *systemName;
+#ifdef CUSTOM_SYSTEM_LOCATION
     QLineEdit *systemLocation;
+#endif
     QLabel    *systemNameValidation;
+#ifdef CUSTOM_SYSTEM_LOCATION
     QLabel    *systemLocationValidation;
     QRegularExpression dirValidate;
 private slots:
     void chooseDirectoryLocation();
+#endif
 protected:
     [[nodiscard]] bool isComplete() const override;
     bool eventFilter(QObject *watched, QEvent *event) override;
@@ -109,7 +113,9 @@ public:
 private:
     QLabel *topLabel;
     QLabel *systemName;
+#ifdef CUSTOM_SYSTEM_LOCATION
     QLabel *systemLocation;
+#endif
 protected:
     void initializePage() override;
 };