Don't initialize QFlags unnecessarily

And if needed, do it with {} instead of with nullptr or 0.

Change-Id: Iae80253cd334494cfe1d69ec1552d710f2a31ad2
Reviewed-by: hjk <hjk@qt.io>

src/plugins/projectexplorer/jsonwizard/jsonwizardfactory.cpp

@@ -660,7 +660,7 @@ bool JsonWizardFactory::initialize(const QVariantMap &data, const QDir &baseDir,
             return false;
     }
 
-    WizardFlags flags = {};
+    WizardFlags flags;
     if (data.value(QLatin1String(PLATFORM_INDEPENDENT_KEY), false).toBool())
         flags |= PlatformIndependent;
     setFlags(flags);