Revert "Temporarily flag a SIMD test as optimization-sensitive (#19163)"

[kouvel]

This reverts commit 855ddf5 (PR #19163). Issue https://github.com/dotnet/coreclr/issues/19124 was fixed by PR #19234, so re-enabling the test in minopts and with tiering.

[BruceForstall]

I can't tell if there are any specific test jobs that should be triggered to verify this, but if there are some, please do trigger those.

[kouvel]

@dotnet-bot test Ubuntu x64 Checked minopts
test OSX10.12 x64 Checked minopts

[kouvel]

All of the perf runs have this similar failure, which is unrelated to this change:

13:54:51 [tests\scripts\run-xunit-perf.py]: py D:\j\w\perf_perflab_---89ec9f56\Microsoft.Benchview.JSONFormat\tools\measurement.py xunit --better desc --drop-first-value --append D:\j\w\perf_perflab_---89ec9f56\bin\sandbox_logs\Microbenchmarks\Off\PerfLab\Perf-Off-PerfLab.xml
13:54:51 Traceback (most recent call last):
13:54:51   File "tests\scripts\run-xunit-perf.py", line 530, in <module>
13:54:51     sys.exit(main(Args))
13:54:51   File "tests\scripts\run-xunit-perf.py", line 521, in main
13:54:51     upload_to_benchview(python, coreclrRepo, benchviewPath, uploadToBenchview, benchviewGroup, runType, configuration, operatingSystem, etwCollection, optLevel, jitName, pgoOptimized, arch)
13:54:51   File "tests\scripts\run-xunit-perf.py", line 285, in upload_to_benchview
13:54:51     raise Exception('%s does not exist. There is no data to be uploaded.' % jsonFile)
13:54:51 Exception: D:\j\w\perf_perflab_---89ec9f56\submission-metadata.json does not exist. There is no data to be uploaded.