Switch to BYOC BuildPools in internal project (#23501)
Switch to BYOC BuildPools in internal project (#23501)

* dnceng-linux-internal-temp -> BuildPool.Ubuntu.1604.Amd64
* dotnet-internal-temp -> BuildPool.Windows.10.Amd64.VS2017

poizan42/coreclr,cshung/coreclr,wtgodbe/coreclr,cshung/coreclr,wtgodbe/coreclr,krk/coreclr,poizan42/coreclr,wtgodbe/coreclr,cshung/coreclr,wtgodbe/coreclr,krk/coreclr,krk/coreclr,krk/coreclr,cshung/coreclr,cshung/coreclr,krk/coreclr,poizan42/coreclr,poizan42/coreclr,wtgodbe/coreclr,poizan42/coreclr,poizan42/coreclr,cshung/coreclr,krk/coreclr,wtgodbe/coreclr