Revert Nuget.config

Author: v-wuzhai

NuGet.config

@@ -60,9 +60,6 @@
     <!--  Begin: Package sources from dotnet-emsdk -->
     <!--  End: Package sources from dotnet-emsdk -->
     <!--  Begin: Package sources from dotnet-format -->
-    <!--  Begin: Package sources from DotNet-msbuild-Trusted -->
-    <add key="darc-int-DotNet-msbuild-Trusted-3ab07f0" value="true" />
-    <!--  End: Package sources from DotNet-msbuild-Trusted -->
     <!--  End: Package sources from dotnet-format -->
     <!--  End: Package sources from dotnet-aspnetcore -->
     <!--  Begin: Package sources from dotnet-runtime -->