Optimization: Remove EvaluationStatus from public interface

src/Numerics/Optimization/IEvaluation.cs

@@ -17,7 +17,6 @@ namespace MathNet.Numerics.Optimization
         // Used by algorithm
         bool GradientSupported { get; }
         bool HessianSupported { get; }
-        EvaluationStatus Status { get; }
         double Value { get; }
         Vector<double> Gradient { get; }
         Matrix<double> Hessian { get; }

src/Numerics/Optimization/Implementation/ObjectiveChecker.cs

@@ -31,14 +31,6 @@ namespace MathNet.Numerics.Optimization.Implementation
             set { this.InnerEvaluation.Point = value; }
         }
 
-        public EvaluationStatus Status
-        {
-            get
-            {
-                return this.InnerEvaluation.Status;
-            }
-        }
-
         public double Value
         {
             get