Android: Remove a few unnecessay Q_OBJECT

Change-Id: Ic57a7cfc58d741547cb793b24ff1358d900eaf5d
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>

src/plugins/android/androidsdkmanagerwidget.h

@@ -43,8 +43,6 @@ class AndroidSdkModel;
 
 class OptionsDialog : public QDialog
 {
-    Q_OBJECT
-
 public:
     OptionsDialog(AndroidSdkManager *sdkManager, const QStringList &args,
                   QWidget *parent = nullptr);