Fix a m_camera not used warning fix pointed by clang

src/content_cao.cpp

@@ -546,7 +546,6 @@ GenericCAO::GenericCAO(IGameDef *gamedef, ClientEnvironment *env):
 		//
 		m_smgr(NULL),
 		m_irr(NULL),
-		m_camera(NULL),
 		m_gamedef(NULL),
 		m_selection_box(-BS/3.,-BS/3.,-BS/3., BS/3.,BS/3.,BS/3.),
 		m_meshnode(NULL),
@@ -804,7 +803,7 @@ void GenericCAO::removeFromScene(bool permanent)
 	}
 }
 
-void GenericCAO::addToScene(scene::ISceneManager *smgr, 
+void GenericCAO::addToScene(scene::ISceneManager *smgr,
 		ITextureSource *tsrc, IrrlichtDevice *irr)
 {
 	m_smgr = smgr;

src/content_cao.h

@@ -68,7 +68,6 @@ class GenericCAO : public ClientActiveObject
 	//
 	scene::ISceneManager *m_smgr;
 	IrrlichtDevice *m_irr;
-	Camera* m_camera;
 	IGameDef *m_gamedef;
 	aabb3f m_selection_box;
 	scene::IMeshSceneNode *m_meshnode;
@@ -206,7 +205,7 @@ class GenericCAO : public ClientActiveObject
 			float time_from_last_punch=1000000);
 
 	std::string debugInfoText();
-	
+
 	std::string infoText()
 	{
 		return m_prop.infotext;