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/valgrind/suppressiondialog.cpp

@@ -170,6 +170,11 @@ SuppressionDialog::SuppressionDialog(MemcheckErrorView *view)
     setWindowTitle(tr("Save Suppression"));
 }
 
+SuppressionDialog::~SuppressionDialog()
+{
+    delete m_ui;
+}
+
 bool SuppressionDialog::shouldShow() const
 {
     return !m_errors.isEmpty();