VcsBase: Fix memory leaks

Change-Id: Ibabcf2baf4e31cb9d7e2287a2909ef5653dbbc9c
Reviewed-by: hjk <hjk@qt.io>

src/plugins/vcsbase/vcsbaseplugin.cpp

@@ -543,6 +543,7 @@ VcsBasePlugin::VcsBasePlugin() :
 
 VcsBasePlugin::~VcsBasePlugin()
 {
+    delete d->m_versionControl;
     delete d;
 }
 

src/plugins/vcsbase/vcsplugin.cpp

@@ -73,6 +73,7 @@ VcsPlugin::~VcsPlugin()
 {
     VcsOutputWindow::destroy();
     m_instance = nullptr;
+    delete d;
 }
 
 bool VcsPlugin::initialize(const QStringList &arguments, QString *errorMessage)