remove dead codes

Author: smdn

src/Smdn.Reflection.ReverseGenerating.ListApi.Core/Smdn.Reflection.ReverseGenerating.ListApi.Core.Common.props

@@ -32,10 +32,8 @@ SPDX-License-Identifier: MIT
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.Reflection.MetadataLoadContext" Version="6.0.0" Condition="$(TargetFramework.StartsWith('net6.')) Or $(TargetFramework.StartsWith('netcoreapp'))" />
     <PackageReference Include="System.Reflection.MetadataLoadContext" Version="7.0.0" Condition="$(TargetFramework.StartsWith('net7.'))" />
     <PackageReference Include="System.Reflection.MetadataLoadContext" Version="8.0.0" Condition="$(TargetFramework.StartsWith('net8.'))" />
-    <PackageReference Include="Microsoft.Extensions.DependencyModel" Version="6.0.0" Condition="$(TargetFramework.StartsWith('net6.')) Or $(TargetFramework.StartsWith('netcoreapp'))" />
     <PackageReference Include="Microsoft.Extensions.DependencyModel" Version="7.0.0" Condition="$(TargetFramework.StartsWith('net7.'))" />
     <PackageReference Include="Microsoft.Extensions.DependencyModel" Version="8.0.0" Condition="$(TargetFramework.StartsWith('net8.'))" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="6.0.0" />