QHelpEngineCore: Remove the old hack for dynamic readonly property

[ChangeLog][QtHelp][QHelpEngineCore] Remove the old hack with
setting the dynamic "_q_readonly" property to change the read only
mode. Use QHelpEngineCore::setReadOnly() instead.

Use public QHelpEngineCore::setReadOnly() instead.
The hack had to still exist around when the amended
change was done so that it was still available for Qt 5 series.
Now it's not needed anymore.

Amends 15d7a30d41b423846fc74d9dd252c1e2a84769e2

Change-Id: I79e23850dc597db19f0da8b4dfec9fde4b529a35
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>

1 files changed, 1 insertions, 3 deletions

diff --git a/src/assistant/help/qhelpenginecore.cpp b/src/assistant/help/qhelpenginecore.cpp
index e5dc4aa63..5726e3250 100644
--- a/src/assistant/help/qhelpenginecore.cpp
+++ b/src/assistant/help/qhelpenginecore.cpp
@@ -65,9 +65,7 @@ bool QHelpEngineCorePrivate::setup()
     needsSetup = false;
     emit q->setupStarted();
 
-    const QVariant readOnlyVariant = q->property("_q_readonly");
-    const bool readOnly = readOnlyVariant.isValid() ? readOnlyVariant.toBool() : q->isReadOnly();
-    collectionHandler->setReadOnly(readOnly);
+    collectionHandler->setReadOnly(q->isReadOnly());
     const bool opened = collectionHandler->openCollectionFile();
     if (opened)
         q->currentFilter();