Update test project to netcoreapp1.1, update moq and remove some un-need nugets

Author: kevinkuszyk

tests/FluentAssertions.AspNetCore.Mvc.Tests/FluentAssertions.AspNetCore.Mvc.Tests.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <VersionPrefix>0.7.0</VersionPrefix>
-    <TargetFramework>netcoreapp1.0</TargetFramework>
+    <TargetFramework>netcoreapp1.1</TargetFramework>
     <AssemblyName>FluentAssertions.AspNetCore.Mvc.Tests</AssemblyName>
     <PackageId>FluentAssertions.AspNetCore.Mvc.Tests</PackageId>
     <GenerateRuntimeConfigurationFiles>true</GenerateRuntimeConfigurationFiles>
@@ -23,11 +23,9 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.0.0-preview-20170106-08" />
     <PackageReference Include="NUnit" Version="3.8.1" />
-    <PackageReference Include="dotnet-test-nunit" Version="3.4.0-beta-1" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="1.0.3" />
-    <PackageReference Include="Moq" Version="4.6.36-alpha" />
+    <PackageReference Include="Moq" Version="4.7.99" />
   </ItemGroup>
 
 </Project>