[Deps] Retire the CUDA 12 lane (#38404)

Co-authored-by: Mohammad Angkad <mohammad.angkad@radixark.ai>

.github/workflows/release-whl-deepgemm.yml

@@ -14,7 +14,6 @@ on:
         default: 'all'
         options:
           - 'all'
-          - 'cu129'
           - 'cu130'
       branch:
         description: "DeepGEMM branch to build from (default: dev)"
@@ -33,92 +32,6 @@ env:
   TORCH_VER: "2.13.0"
 
 jobs:
-  build-cu129-matrix:
-    if: |
-      github.repository == 'sgl-project/sglang' &&
-      (github.event.inputs.target == 'all' || github.event.inputs.target == 'cu129')
-    strategy:
-      matrix:
-        python-version: ["3.12"]
-        cuda-version: ["12.9"]
-        arch: [x86_64, aarch64]
-        include:
-          - arch: x86_64
-            runner: x64-kernel-build-node
-          - arch: aarch64
-            runner: arm-kernel-build-node
-    runs-on: ${{ matrix.runner }}
-    steps:
-      - name: Clean workspace (remove root-owned files from prior runs)
-        run: |
-          docker run --rm -v "${{ github.workspace }}:/workspace" alpine:3 \
-            sh -c 'rm -rf /workspace/..?* /workspace/.[!.]* /workspace/*' || true
-
-      - uses: actions/checkout@v4
-
-      - name: Checkout DeepGEMM
-        uses: actions/checkout@v4
-        with:
-          repository: sgl-project/DeepGEMM
-          ref: ${{ inputs.branch || 'dev' }}
-          path: DeepGEMM
-          submodules: recursive
-
-      - name: Set wheel version
-        run: |
-          echo -n "${{ inputs.version }}" > DeepGEMM/sgl_deep_gemm/VERSION
-          cat DeepGEMM/sgl_deep_gemm/VERSION
-
-      - name: Build wheel
-        run: |
-          chmod +x ./scripts/build_sgl_deep_gemm.sh ./scripts/rename_sgl_deep_gemm_whl.sh
-          ./scripts/build_sgl_deep_gemm.sh "${{ matrix.python-version }}" "${{ matrix.cuda-version }}" "${{ github.workspace }}/DeepGEMM" "${{ matrix.arch }}"
-
-      - name: Upload artifacts
-        uses: actions/upload-artifact@v4
-        with:
-          name: deepgemm-wheel-cuda${{ matrix.cuda-version }}-${{ matrix.arch }}
-          path: DeepGEMM/dist/*.whl
-
-  release-cu129:
-    needs: build-cu129-matrix
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Download artifacts
-        uses: actions/download-artifact@v4
-        with:
-          path: dist/
-          merge-multiple: true
-          pattern: deepgemm-wheel-cuda12.9-*
-
-      - name: Release
-        uses: softprops/action-gh-release@v2
-        with:
-          tag_name: v${{ inputs.version }}
-          repository: sgl-project/whl
-          token: ${{ secrets.GH_PAT_FOR_WHL_RELEASE }}
-          files: |
-            dist/*
-
-      - name: Clone wheel index
-        run: git clone https://oauth2:${WHL_TOKEN}@github.com/sgl-project/whl.git sgl-whl
-        env:
-          WHL_TOKEN: ${{ secrets.GH_PAT_FOR_WHL_RELEASE }}
-
-      - name: Update wheel index
-        run: python3 scripts/update_deepgemm_whl_index.py --cuda 129
-
-      - name: Push wheel index
-        run: |
-          cd sgl-whl
-          git config --local user.name "sglang-bot"
-          git config --local user.email "sglangbot@gmail.com"
-          git add -A
-          git commit -m "update sgl-deep-gemm whl index for v${{ inputs.version }}"
-          git push
-
   build-cu130-matrix:
     if: |
       github.repository == 'sgl-project/sglang' &&