Removed package reference System.Configuration.ConfigurationManager"

Author: johelvisguzman

src/DotNetToolkit.Repository.AdoNet/DotNetToolkit.Repository.AdoNet.csproj

@@ -10,7 +10,6 @@
   </PropertyGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
-    <PackageReference Include="System.Configuration.ConfigurationManager" Version="4.5.0" />
     <PackageReference Include="System.Data.SqlClient" Version="4.6.0" />
   </ItemGroup>