Break dependency cycle introduced at a69fba9

src/tracks/playabletrack/wavetrack/ui/WaveTrackView.cpp

@@ -40,53 +40,6 @@ Paul Licameli split from TrackPanel.cpp
 #include "../../../ui/ButtonHandle.h"
 #include "../../../../TrackInfo.h"
 
-namespace {
-   class Registry {
-   public:
-      using Type = WaveTrackSubView::Type;
-      using Types = std::vector< Type >;
-
-      void Append( Type type )
-      {
-         types.emplace_back( std::move( type ) );
-         sorted = false;
-      }
-
-      Types &Get()
-      {
-         if ( !sorted ) {
-            auto begin = types.begin(), end = types.end();
-            std::sort( begin, end );
-            // We don't want duplicate ids!
-            wxASSERT( end == std::adjacent_find( begin, end ) );
-            sorted = true;
-         }
-         return types;
-      }
-
-   private:
-      Types types;
-      bool sorted = false;
-   };
-
-   Registry &GetRegistry()
-   {
-      static Registry result;
-      return result;
-   }
-}
-
-WaveTrackSubView::RegisteredType::RegisteredType( Type type )
-{
-   GetRegistry().Append( std::move( type ) );
-}
-
-// static
-auto WaveTrackSubView::AllTypes() -> const Types &
-{
-   return GetRegistry().Get();
-}
-
 namespace {
 
 using WaveTrackSubViewPtrs = std::vector< std::shared_ptr< WaveTrackSubView > >;