PR #12896: [GPU][NFC] Remove deprecated runtime proto message.
PR #12896: [GPU][NFC] Remove deprecated runtime proto message.

Imported from GitHub PR https://github.com/openxla/xla/pull/12896


Copybara import of the project:

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32ded36419a4a1b2177a6374846497a8bb458ac9 by Ilia Sergachev <isergachev@nvidia.com>:

[GPU][NFC] Remove deprecated runtime proto message.

Merging this change closes #12896

FUTURE_COPYBARA_INTEGRATE_REVIEW=https://github.com/openxla/xla/pull/12896 from openxla:cleanup 32ded36419a4a1b2177a6374846497a8bb458ac9
