Enable native disthro plugins back again

source/backend/CarlaNative.h

@@ -198,12 +198,10 @@ void carla_register_native_plugin_bypass();
 void carla_register_native_plugin_midiSplit();
 void carla_register_native_plugin_midiThrough();
 
-#if 0
 // DISTRHO plugins
 void carla_register_native_plugin_3BandEQ();
 void carla_register_native_plugin_3BandSplitter();
 void carla_register_native_plugin_PingPongPan();
-#endif
 
 #ifdef WANT_AUDIOFILE
 void carla_register_native_plugin_audiofile();

source/backend/plugin/NativePlugin.cpp

@@ -1748,11 +1748,9 @@ private:
         carla_register_native_plugin_midiSplit();
         carla_register_native_plugin_midiThrough();
 
-#if 0
         carla_register_native_plugin_3BandEQ();
         carla_register_native_plugin_3BandSplitter();
         carla_register_native_plugin_PingPongPan();
-#endif
 
 # ifdef WANT_AUDIOFILE
         carla_register_native_plugin_audiofile();