[AMD][CI] Drop the dead miles ROCm 7.0 nightly image build

[michaelzhang-ai]

Motivation

release-docker-amd-miles-rocm700-nightly.yml builds the rocm700-mi35x and rocm700-mi30x variants through miles' docker/build.py. radixark/miles#2854 ("retire the rocm700 variants, add a rocm10-mi35x variant") merged 2026-09-09 05:37 UTC and deleted both, leaving rocm720-mi35x and rocm10-mi35x as the only ROCm variants.

The workflow still asks for the retired ones, so the very next scheduled run — run 34348795681, 2026-09-09 12:02 UTC — failed immediately:

python3 docker/build.py --variant rocm700-mi35x --image-tag custom --custom-tag miles
Invalid value for '--variant': 'rocm700-mi35x' is not one of 'cu13', ...

It cannot succeed again. Left in place it burns two amd-docker-scale jobs and posts a red daily build on the MILES dashboard every day at 12:00 UTC, which is noise on top of the real nightly failures.

Modifications

Delete .github/workflows/release-docker-amd-miles-rocm700-nightly.yml.

The ROCm 10 replacements (release-docker-amd-miles-rocm10-nightly.yml and nightly-test-amd-miles-rocm10.yml) are already proposed in #37495, so this only removes the dead half; the two can land in either order.

Verification

• rg 'miles-rocm700' over the repo returns nothing, so no workflow, script or doc consumes the rocm/sgl-dev:miles-rocm700-* tags this workflow published. The remaining rocm700 hits in scripts/ci/amd/amd_ci_start_container*.sh and docker/rocm.Dockerfile refer to plain SGLang ROCm 7.0 images (v0.5.8.post1-rocm700-*), which are unrelated and untouched.
• rg 'release-docker-amd-miles-rocm700' returns nothing, so nothing references the workflow by name.
• python3 scripts/lint/check_workflow_job_names.py passes.
• Miles' current variant list is ['cu13', 'cu13-x86', 'cu13-aarch64', 'cu12-x86', 'rocm720-mi35x', 'rocm10-mi35x']; rocm700 no longer appears anywhere in that repo outside docs.

release-docker-amd-miles-rocm720-nightly.yml is unaffected — rocm720-mi35x is still a supported variant and that workflow still builds.

Accuracy Tests

Not applicable — removes a CI workflow, no model or kernel code is touched.

Speed Tests and Profiling

Not applicable.

Checklist

• Format your code according to the Format code with pre-commit.
• Add unit tests according to the Run and add unit tests.
• Update documentation according to Write documentations.
• Provide accuracy and speed benchmark results according to Test the accuracy and Benchmark the speed.
• Follow the SGLang code style guidance.

  

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CI States

Latest PR Test (Base): ✅ Run #34360497621
Latest PR Test (Extra): ❌ Run #34360497168
Latest PR Test (AMD ROCm 10): ➖ No AMD PR run found for this commit.