Got rid of straggling typedefs

gtsam/discrete/DiscreteConditional.h

@@ -45,7 +45,6 @@ public:
   /** A map from keys to values..
    * TODO: Again, do we need this??? */
   typedef Assignment<Key> Values;
-  typedef boost::shared_ptr<Values> sharedValues;
 
   /// @name Standard Constructors
   /// @{

gtsam/discrete/DiscreteFactorGraph.h

@@ -74,7 +74,6 @@ public:
   /** A map from keys to values */
   typedef KeyVector Indices;
   typedef Assignment<Key> Values;
-  typedef boost::shared_ptr<Values> sharedValues;
 
   /** Default constructor */
   DiscreteFactorGraph() {}

gtsam_unstable/discrete/CSP.h

@@ -22,7 +22,6 @@ class GTSAM_UNSTABLE_EXPORT CSP : public DiscreteFactorGraph {
  public:
   /** A map from keys to values */
   typedef Assignment<Key> Values;
-  typedef boost::shared_ptr<Values> sharedValues;
 
  public:
   /// Add a unary constraint, allowing only a single value