NightlyTester DB offline

All,

The nightly test database is not usable at this time. Due to load issues on llvm.org, we are forced to disable the nightly-tester database and results for the foreseeable future.

This is not a long term solution, but temporary until we can bring up the new llvm.org server and new nightlytester infrastructure. Buildbots are running llvm-test, so things are not going untested.

Thanks,
Tanya