Memory allocation for geometry data.

Single allocation is made and from it I suballocate two buffers: for vertex and index data correspondingly.

src/engine/client/client.h

@@ -363,7 +363,6 @@ void CL_AddReliableCommand( const char *cmd );
 void CL_StartHunkUsers( void );
 
 void CL_Disconnect_f (void);
-void CL_GetChallengePacket (void);
 void CL_Vid_Restart_f( void );
 void CL_Snd_Restart_f (void);
 void CL_StartDemoLoop( void );