Remove LinuxSampler headers hack (fixes build with gcc4.8)

source/backend/plugin/LinuxSamplerPlugin.cpp

@@ -19,16 +19,9 @@
 
 #ifdef WANT_LINUXSAMPLER
 
-// fix broken headers
-#define old__cplusplus __cplusplus
-#undef __cplusplus
-
 #include "linuxsampler/EngineFactory.h"
 #include <linuxsampler/Sampler.h>
 
-#define __cplusplus old__cplusplus
-#undef old__cplusplus
-
 namespace LinuxSampler {
 
 using CarlaBackend::CarlaEngine;

source/discovery/carla-discovery.cpp

@@ -36,12 +36,7 @@
 # include <fluidsynth.h>
 #endif
 #ifdef WANT_LINUXSAMPLER
-// fix broken headers
-# define TMP__cplusplus __cplusplus
-# undef __cplusplus
 # include "linuxsampler/EngineFactory.h"
-# define __cplusplus TMP__cplusplus
-# undef TMP__cplusplus
 #endif
 
 #include "juce_audio_basics.h"