Vcs: Move settings ownership from VcsBaseClientImpl to plugin

Turns out CVS and Bazaar already had an unused copy there...

Change-Id: I512c4d6322620e2b55d9008600ac676ce09032aa
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/mercurial/mercurialplugin.cpp

@@ -140,7 +140,7 @@ MercurialPluginPrivate::MercurialPluginPrivate()
     dd = this;
     Core::Context context(Constants::MERCURIAL_CONTEXT);
 
-    m_client = new MercurialClient;
+    m_client = new MercurialClient(&m_settings);
     auto vc = new MercurialControl(m_client);
     initializeVcs(vc, context);