Fix memory leaks (lacking destructors for uis)

Change-Id: I07c2708d727d59286b0d625a4c0c318f18b03b93
Reviewed-by: Tobias Hunger <tobias.hunger@nokia.com>
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/debugger/debuggerdialogs.cpp

@@ -1040,6 +1040,7 @@ StartRemoteEngineDialog::StartRemoteEngineDialog(QWidget *parent) :
 
 StartRemoteEngineDialog::~StartRemoteEngineDialog()
 {
+    delete m_ui;
 }
 
 QString StartRemoteEngineDialog::host() const