[SYCL][CUDA] Don't restore CUDA contexts#4442

Merged

romanovvlad merged 3 commits intointel:syclfrom npmiller:cuCtxt-opt

Sep 3, 2021

Commits on Aug 31, 2021

[SYCL][CUDA] Don't restore CUDA contexts
npmiller
committed

Commits on Sep 1, 2021

[SYCL][CUDA] Cleanup ScopedContext class
npmiller
committed

Commits on Sep 2, 2021

[SYCL][CUDA] Add contexts tests
npmiller
committed