Makes device builds (and uploads) much faster.
I've checked all other tests, and this was the only one not using LinkSdk
(except tests that don't on purpose, such as linker tests).
This won't affect device tests on the bots (because those already set LLVM
manually when testing Release), but it becomes less confusing when trying to
reproduce any problems locally, since now the project configuration on disk
matches the tested configuration.
* Fix default http message handler for watchOS.
Fix default http message handler for watchOS to be NSUrlSessionHandler (the
previous attempt at eb7c2fd was quite incomplete), and make sure
HttpClientHandler is never used (show errors if someone tries).
* [tests] Remove explicit http client handler from project files.
Just use the default instead, since the set of valid http client handlers varies between platforms.
Rolf Bjarne Kvinge