Re-enable profiler sample block streaming after race conditions are resolved #46825
Description
The profiler has the ability to stream completed SampleBlock instances over the service protocol. This requires that full sample blocks aren't re-allocated until after they've been processed and marked evictable. There's currently some racey logic in the eviction code, so this feature has been disabled for the 2.14 release.
This functionality should be re-enabled once the race conditions are resolved before the 2.15 beta branch.