remove artifacts-to-be-uploaded

Author: mori360

.github/workflows/integration_test_8gpu_amd.yaml

@@ -35,7 +35,5 @@ jobs:
         pip install -r requirements.txt
         python -m pip install --force-reinstall --pre torch --index-url https://download.pytorch.org/whl/nightly/rocm6.3
         USE_CPP=0 python -m pip install --pre torchao --index-url https://download.pytorch.org/whl/nightly/cu126
-        mkdir artifacts-to-be-uploaded
         mkdir generated-artifacts
         python ./tests/integration_tests_amd.py generated-artifacts --ngpu 8
-        cp -r generated-artifacts/* artifacts-to-be-uploaded/