Remove Distributed tests from CI (#699)

Now that Distributed runs GPU tests in CI, running them here is redundant and can be removed.

Authors:
  - Peter Andreas Entschev (https://github.com/pentschev)

Approvers:
  - AJ Schmidt (https://github.com/ajschmidt8)

URL: #699

ci/gpu/build.sh

@@ -108,23 +108,6 @@ else
     ls dask_cuda/tests/
     UCXPY_IFNAME=eth0 UCX_WARN_UNUSED_ENV_VARS=n UCX_MEMTYPE_CACHE=n pytest -vs -Werror::DeprecationWarning -Werror::FutureWarning --cache-clear --basetemp="$WORKSPACE/dask-cuda-tmp" --junitxml="$WORKSPACE/junit-dask-cuda.xml" --cov-config=.coveragerc --cov=dask_cuda --cov-report=xml:"$WORKSPACE/dask-cuda-coverage.xml" --cov-report term dask_cuda/tests/
 
-    gpuci_logger "Running dask.distributed GPU tests"
-    # Test downstream packages, which requires Python v3.7
-    if [ $(python -c "import sys; print(sys.version_info[1])") -ge "7" ]; then
-        # Clone Distributed to avoid pytest cleanup fixture errors
-        # See https://github.com/dask/distributed/issues/4902
-        gpuci_logger "Clone Distributed"
-        git clone https://github.com/dask/distributed
-
-        gpuci_logger "Run Distributed Tests"
-        pytest --cache-clear -vs -Werror::DeprecationWarning -Werror::FutureWarning distributed/distributed/protocol/tests/test_cupy.py
-        pytest --cache-clear -vs -Werror::DeprecationWarning -Werror::FutureWarning distributed/distributed/protocol/tests/test_numba.py
-        pytest --cache-clear -vs -Werror::DeprecationWarning -Werror::FutureWarning distributed/distributed/protocol/tests/test_rmm.py
-        pytest --cache-clear -vs -Werror::DeprecationWarning -Werror::FutureWarning distributed/distributed/protocol/tests/test_collection_cuda.py
-        pytest --cache-clear -vs -Werror::DeprecationWarning -Werror::FutureWarning distributed/distributed/tests/test_nanny.py
-        pytest --cache-clear -vs -Werror::DeprecationWarning -Werror::FutureWarning distributed/distributed/diagnostics/tests/test_nvml.py
-    fi
-
     logger "Run local benchmark..."
     python dask_cuda/benchmarks/local_cudf_shuffle.py --partition-size="1 KiB" -d 0  --runs 1 --backend dask
     python dask_cuda/benchmarks/local_cudf_shuffle.py --partition-size="1 KiB" -d 0  --runs 1 --backend explicit-comms