Extend search pane

The search term line edit can now be hidden away and the options are
hidden too too if they are all disabled.

Change-Id: I2363d010acbdabb2abfc6c6cd2f98c07cd7d3a3d
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/cpptools/symbolsfindfilter.cpp

@@ -100,11 +100,6 @@ void SymbolsFindFilter::setPaused(bool paused)
         watcher->setPaused(paused);
 }
 
-FindFlags SymbolsFindFilter::supportedFindFlags() const
-{
-    return FindCaseSensitively | FindRegularExpression | FindWholeWords;
-}
-
 void SymbolsFindFilter::findAll(const QString &txt, FindFlags findFlags)
 {
     SearchResultWindow *window = SearchResultWindow::instance();

src/plugins/cpptools/symbolsfindfilter.h

@@ -56,7 +56,6 @@ public:
     QString id() const;
     QString displayName() const;
     bool isEnabled() const;
-    Core::FindFlags supportedFindFlags() const;
 
     void findAll(const QString &txt, Core::FindFlags findFlags);