remove unused findex from btTypedConstraint.h

src/BulletDynamics/ConstraintSolver/btTypedConstraint.h

@@ -145,11 +145,6 @@ public:
 		// lo and hi limits for variables (set to -/+ infinity on entry).
 		btScalar *m_lowerLimit,*m_upperLimit;
 
-		// findex vector for variables. see the LCP solver interface for a
-		// description of what this does. this is set to -1 on entry.
-		// note that the returned indexes are relative to the first index of
-		// the constraint.
-		int *findex;
 		// number of solver iterations
 		int m_numIterations;