llvm

4a4202f1 - [SYCL] Remove sycl_ext_oneapi_discard_queue_events in preview-breaking mode (#22854)

[SYCL] Remove sycl_ext_oneapi_discard_queue_events in preview-breaking mode (#22854) Removes the deprecated `sycl_ext_oneapi_discard_queue_events` extension from preview-breaking builds. This guards the property, feature-test macro, runtime usage, and unit test, while disabling its E2E tests in preview mode. Documentation is marked for removal during the next breaking-changes window. This partially addresses #22581