Fix method duplication introduced after merge

Author: AlexUstinov

Orm/Xtensive.Orm/Linq/FastExpression.cs

@@ -42,17 +42,6 @@ public static Expression<TDelegate> Lambda<TDelegate>(Expression body, params Pa
         .CreateLambda(typeof(TDelegate), body, parameters ?? Array.Empty<ParameterExpression>());
     }
 
-    /// <summary>
-    /// Generates <see cref="LambdaExpression"/> faster than <see cref="Expression.Lambda(Type,Expression,ParameterExpression[])"/>.
-    /// </summary>
-    /// <param name="body">The body of lambda expression.</param>
-    /// <param name="parameters">The parameters of lambda expression.</param>
-    /// <returns>Constructed lambda expression.</returns>
-    public static Expression<TDelegate> Lambda<TDelegate>(Expression body, params ParameterExpression[] parameters)
-    {
-      return (Expression<TDelegate>) LambdaExpressionFactory.Instance.CreateLambda(typeof(TDelegate), body, parameters);
-    }
-
     /// <summary>
     /// Generates <see cref="LambdaExpression"/> faster than <see cref="Expression.Lambda(Type,Expression,IEnumerable{ParameterExpression})"/>.
     /// </summary>