Remove unused documentation code snippets

Modules:
- Core
- Gui
- Widgets
- Open(Widgets)
- PrintSupport
- Sql
- Network
- Concurrent
- Testlib

Pick-to: 6.5
Change-Id: I63e58c01bec4bd162486020f0085227fdaa83b18
Reviewed-by: Ahmad Samir <a.samirh78@gmail.com>
Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

1 files changed, 0 insertions, 10 deletions

diff --git a/src/corelib/doc/snippets/code/src_corelib_kernel_qmetatype.cpp b/src/corelib/doc/snippets/code/src_corelib_kernel_qmetatype.cpp
index a213ccbca6..757700786e 100644
--- a/src/corelib/doc/snippets/code/src_corelib_kernel_qmetatype.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_kernel_qmetatype.cpp
@@ -101,16 +101,6 @@ void someFunc()
 
 //! [11]
 
-//! [12]
-QPointer<QFile> fp(new QFile);
-QVariant var = QVariant::fromValue(fp);
-// ...
-if (var.canConvert<QObject*>()) {
-    QObject *sp = var.value<QObject*>();
-    qDebug() << sp->metaObject()->className(); // Prints 'QFile'.
-}
-//! [12]
-
 //! [13]
 
 #include <memory>