[SYCL][E2E] minor clean up of test directives#20246

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sarnex merged 1 commit intointel:syclfrom

cperkinsintel:cperkins-icx-win-fix

Oct 1, 2025

Commits on Sep 29, 2025

remove -std=c++20 from a couple of tests. it is not needed, and if it is then we'd use %cxx_std_optionc++20 instead
cperkinsintel
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