chore: remove tests.yaml (#2754)

# What does this PR do?
Don't think this is used anymore

## Test Plan

.github/workflows/tests.yml

@@ -1,69 +0,0 @@
-name: auto-tests
-
-on:
-  # pull_request:
-  workflow_dispatch:
-    inputs:
-      commit_sha:
-        description: 'Specific Commit SHA to trigger on'
-        required: false
-        default: $GITHUB_SHA # default to the last commit of $GITHUB_REF branch
-
-jobs:
-  test-llama-stack-as-library:
-    runs-on: ubuntu-latest
-    env:
-      TOGETHER_API_KEY: ${{ secrets.TOGETHER_API_KEY }}
-      FIREWORKS_API_KEY: ${{ secrets.FIREWORKS_API_KEY }}
-      TAVILY_SEARCH_API_KEY: ${{ secrets.TAVILY_SEARCH_API_KEY }}
-    strategy:
-      matrix:
-        provider: [fireworks, together]
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          ref: ${{ github.event.inputs.commit_sha }}
-
-      - name: Echo commit SHA
-        run: |
-          echo "Triggered on commit SHA: ${{ github.event.inputs.commit_sha }}"
-          git rev-parse HEAD
-
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install -r requirements.txt pytest
-          pip install -e .
-
-      - name: Build providers
-        run: |
-          llama stack build --template ${{ matrix.provider }} --image-type venv
-
-      - name: Install the latest llama-stack-client & llama-models packages
-        run: |
-          pip install -e git+https://github.com/meta-llama/llama-stack-client-python.git#egg=llama-stack-client
-          pip install -e git+https://github.com/meta-llama/llama-models.git#egg=llama-models
-
-      - name: Run client-sdk test
-        working-directory: "${{ github.workspace }}"
-        env:
-          REPORT_OUTPUT: md_report.md
-        shell: bash
-        run: |
-          pip install --upgrade pytest-md-report
-          echo "REPORT_FILE=${REPORT_OUTPUT}" >> "$GITHUB_ENV"
-
-          export INFERENCE_MODEL=meta-llama/Llama-3.1-8B-Instruct
-          LLAMA_STACK_CONFIG=./llama_stack/templates/${{ matrix.provider }}/run.yaml pytest --md-report --md-report-verbose=1 ./tests/client-sdk/inference/ --md-report-output "$REPORT_OUTPUT"
-
-      - name: Output reports to the job summary
-        if: always()
-        shell: bash
-        run: |
-          if [ -f "$REPORT_FILE" ]; then
-            echo "<details><summary> Test Report for ${{ matrix.provider }} </summary>" >> $GITHUB_STEP_SUMMARY
-            echo "" >> $GITHUB_STEP_SUMMARY
-            cat "$REPORT_FILE" >> $GITHUB_STEP_SUMMARY
-            echo "" >> $GITHUB_STEP_SUMMARY
-            echo "</details>" >> $GITHUB_STEP_SUMMARY
-          fi