Revert "Add integration test for Linux with Nvidia GPU. #3884 (#3895)" (#3905)

This reverts commit 449bf529.

.github/conda-environments/linux-environment.yml

-name: comfyui
-channels:
-  - pytorch
-  - nvidia
-  - defaults
-dependencies:
-  - python>=3.9
-  - pip
-  - pytorch
-  - torchvision
-  - torchaudio
-  - pytorch-cuda=12.1
-  - pip:
-    # comfyui requirements
-    - einops
-    - transformers>=4.25.1
-    - safetensors>=0.4.2
-    - aiohttp
-    - pyyaml
-    - Pillow
-    - scipy
-    - tqdm
-    - psutil
-    # comfy-action requirements
-    - requests
-    - google-cloud-storage
-    - comfy-cli
-    - charset-normalizer
\ No newline at end of file

.github/workflows/linux-integration-test.yml

-name: (Linux) ComfyUI Integration Tests
-on:
-  push:
-    branches:
-      - master
-    paths-ignore:
-      - 'app/**'
-      - 'input/**'
-      - 'output/**'
-      - 'model/**'
-      - 'notebook/**'
-      - 'script_example/**'
-      - 'tests/**'
-      - 'tests-ui/**'
-      - '.github/**'
-      - '.ci/**'
-      - 'web/**'
-  workflow_dispatch:
-  pull_request:
-    branches:
-      - master
-    paths-ignore:
-      - 'app/**'
-      - 'input/**'
-      - 'output/**'
-      - 'model/**'
-      - 'notebook/**'
-      - 'script_example/**'
-      - 'tests/**'
-      - 'tests-ui/**'
-      - '.github/**'
-      - '.ci/**'
-      - 'web/**'
-
-jobs:
-  test-workflows:
-    runs-on: [self-hosted, Linux, t4] 
-    steps:
-    - name: Test ComfyUI Workflows
-      uses: comfy-org/comfy-action@main
-      with:
-        os: linux
-        cuda_version: 12.1
-        models-json: '{"v1-5-pruned-emaonly.ckpt": {"url": "https://huggingface.co/runwayml/stable-diffusion-v1-5/resolve/main/v1-5-pruned-emaonly.ckpt", "directory": "checkpoints"}}'
-        workflow_filenames: "default.json"
-        gcs_bucket_name: 'comfy-ci-results'
-        google_credentials: ${{ secrets.GCS_SERVICE_ACCOUNT_JSON }}
-        output_prefix: 'ComfyUI'
-        conda_env_file: '.github/conda-environments/linux-environment.yml'
-        timeout: 50