transformers

8a734ea2 - Tests: move `generate` tests to the right mixin and delete redundant tests (#34464)

Tests: move `generate` tests to the right mixin and delete redundant tests (#34464) * tmp commit * tmp commit * cull overwrites of deleted tests * typo * more specific docstring * make fixup * parameterize at the top? * correction * more deletions :D * tmp commit * for VLMs too * fix _check_outputs * test nit * make fixup * fix another flaky * test_generate_from_inputs_embeds -- handle missing attention mask