remove AssimpPCH.h: fixes #534

code/SceneCombiner.cpp

@@ -49,11 +49,14 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *    OptimizeGraph step.
  */
 // ----------------------------------------------------------------------------
-#include "AssimpPCH.h"
 #include "SceneCombiner.h"
 #include "fast_atof.h"
 #include "Hash.h"
 #include "time.h"
+#include "../include/assimp/DefaultLogger.hpp"
+#include "../include/assimp/scene.h"
+#include <stdio.h>
+#include "ScenePrivate.h"
 
 namespace Assimp	{