Remove Reference references

platforms/brook/src/OpenMMBrookInterface.cpp

@@ -67,15 +67,8 @@ OpenMMBrookInterface::OpenMMBrookInterface( int streamWidth ) : _particleStreamW
    _velocities                              = NULL;
    _forces                                  = NULL;
 
-   _refForceField                           = NULL;
    _log                                     = NULL;
 
-   _refForceField                           = NULL;
-   _refSystem                               = NULL;
-   _refOpenMMContext                        = NULL;
-   _referencePlatform                       = NULL;
-   _refVerletIntegrator                     = NULL;
-
    _particleStreamSize                      = -1;
 
    for( int ii = 0; ii < LastBondForce; ii++ ){
@@ -100,15 +93,6 @@ OpenMMBrookInterface::~OpenMMBrookInterface( ){
       delete _bondParameters[ii];
    }
 
-   // deleted w/ kernel delete? If activated, program crashes
-
-   //delete _refForceField;
-/*
-   delete _refSystem;
-   delete _refOpenMMContext;
-   delete _referencePlatform;
-   delete _refVerletIntegrator;
-*/
 }
 
 /** 

platforms/brook/src/OpenMMBrookInterface.h

@@ -41,8 +41,6 @@
 #include "NonbondedForce.h"
 #include "OpenMMContext.h"
 #include "System.h"
-#include "ReferencePlatform.h"
-#include "VerletIntegrator.h"
 
 namespace OpenMM {
 
@@ -425,14 +423,6 @@ class OpenMMBrookInterface {
        BrookStreamImpl* _velocities;
        BrookStreamImpl* _forces;
 
-       // used to calculate energy
-
-       NonbondedForce*       _refForceField;
-       System*               _refSystem;
-       OpenMMContext*        _refOpenMMContext;
-       ReferencePlatform*    _referencePlatform;
-       VerletIntegrator*     _refVerletIntegrator;
-
       /** 
        * Set BrookBondParameters 
        *