[Benchmark X64] [danmoseley] Remove redundant Atomic wrapper and fix shared- ...

[MihuBot]

Job completed in 1 hour 39 minutes (remote runner delay: 1 minute 12 seconds).
dotnet/runtime#126114
Using arguments: benchmark Regex
Main commit: dotnet/runtime@44cd131
PR commit: danmoseley/runtime@8d88d04

See benchmark results at https://gist.github.com/MihuBot/c3889fd8bfe4d9796ee6e0eb15983467

Artifacts:

• BDN_Artifacts.zip (1 MB)
• results.md (137 KB)