Fix upgrade

Author: Muhammad Rehan Saeed

Benchmarks/Boxed.Mapping.Benchmark/MapArrayBenchmark.cs

@@ -3,9 +3,6 @@ namespace Boxed.Mapping.Benchmark
     using System;
     using AutoMapper;
     using BenchmarkDotNet.Attributes;
-    using BenchmarkDotNet.Attributes.Columns;
-    using BenchmarkDotNet.Attributes.Exporters;
-    using BenchmarkDotNet.Attributes.Jobs;
     using Boxed.Mapping.Benchmark.Mapping;
     using Boxed.Mapping.Benchmark.Models;
 

Benchmarks/Boxed.Mapping.Benchmark/MapListBenchmark.cs

@@ -4,9 +4,6 @@ namespace Boxed.Mapping.Benchmark
     using System.Collections.Generic;
     using AutoMapper;
     using BenchmarkDotNet.Attributes;
-    using BenchmarkDotNet.Attributes.Columns;
-    using BenchmarkDotNet.Attributes.Exporters;
-    using BenchmarkDotNet.Attributes.Jobs;
     using Boxed.Mapping.Benchmark.Mapping;
     using Boxed.Mapping.Benchmark.Models;
 

Benchmarks/Boxed.Mapping.Benchmark/MapObjectBenchmark.cs

@@ -3,9 +3,6 @@ namespace Boxed.Mapping.Benchmark
     using System;
     using AutoMapper;
     using BenchmarkDotNet.Attributes;
-    using BenchmarkDotNet.Attributes.Columns;
-    using BenchmarkDotNet.Attributes.Exporters;
-    using BenchmarkDotNet.Attributes.Jobs;
     using Boxed.Mapping.Benchmark.Mapping;
     using Boxed.Mapping.Benchmark.Models;