Remove stable-diffusion-v1-5-int8 (#1166)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **New Features**
- Introduced a new CI job named `run-examples` to enhance testing
capabilities.
- Added environment variables for improved configuration and dependency
management.

- **Improvements**
- Updated CI workflow to trigger on pull requests and scheduled
intervals, enhancing automation.
- Enhanced structure for executing tests across different components,
improving modularity.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

.github/workflows/examples.yml

@@ -365,12 +365,6 @@ jobs:
         run: |
           docker exec ${{ env.CONTAINER_NAME }} python3 -m pip install scikit-image
           docker exec -e ONEFLOW_MLIR_ENABLE_INFERENCE_OPTIMIZATION=0 ${{ env.CONTAINER_NAME }} python3 -m pytest -v onediff_diffusers_extensions/tests/test_lora.py --disable-warnings
-      # - if: matrix.test-suite == 'diffusers_examples'
-      #   run: docker exec -w /src/onediff/onediff_diffusers_extensions -e ONEFLOW_MLIR_ENABLE_INFERENCE_OPTIMIZATION=0 ${{ env.CONTAINER_NAME }} python3 examples/text_to_image_sdxl_reuse_pipe.py --base /share_nfs/hf_models/stable-diffusion-xl-base-1.0 --new_base /share_nfs/hf_models/dataautogpt3-OpenDalleV1.1
-      - if: matrix.test-suite == 'diffusers_examples' && startsWith(matrix.image, 'onediff-pro')
-        run: |
-          docker exec -w /src/onediff ${{ env.CONTAINER_NAME }} python3 onediff_diffusers_extensions/examples/text_to_image_sd_enterprise.py  --model /share_nfs/hf_models/stable-diffusion-v1-5-int8 --width 512 --height 512 --saved_image /src/onediff/output_enterprise_sd.png
-          docker exec -w /src/onediff ${{ env.CONTAINER_NAME }} python3 tests/test_quantitative_quality.py
 
       - name: Install Requirements for WebUI
         if: matrix.test-suite == 'webui'