Remove unecessary tool reference

Author: vdurante

aspnet-core/src/AbpCompanyName.AbpProjectName.EntityFrameworkCore/AbpCompanyName.AbpProjectName.EntityFrameworkCore.csproj

@@ -15,7 +15,6 @@
   </ItemGroup>
 
   <ItemGroup>
-    <DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="1.0.0" />
     <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="1.0.1" />
   </ItemGroup>