Remove init.py to avoid interfering with cuda namepsace pkg #6671

Job	Run time
Build workflow from matrix	16s
Build and Verify Docs	6m 54s
Build MatX / Build MatX	4m 23s
Build RAPIDS / Check GH Event	2s
Build RAPIDS / rmm kvikio cudf cudf_kafka cuspatial	7m 46s
Build RAPIDS / rmm ucxx raft cuvs cumlprims_mg cuml	7m 45s
Build RAPIDS / rmm ucxx raft cugraph cugraph-gnn	7m 40s
${{ matrix.name }}	0s
${{ matrix.name }}	0s
${{ matrix.name }}	0s
Verify Dev Containers / Verify devcontainer files are up-to-date	21s
cuda (python) CTK12.8 nvcc GCC / [GCC13] Test(amd64, RTX2080)	5m 58s
Verify Dev Containers / ${{ matrix.devcontainer.name }}	0s
Build MatX / Notify Slack of MatX failure	0s
Verify and summarize workflow results	27s
CI	1s
Build RAPIDS / Notify Slack of RAPIDS failure	1s
	41m 34s

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