Clean up anaconda repository #219

Job	Run time
Clean up anaconda packages (dppy/numba-mlir)	1m 36s
Clean up anaconda packages (dppy/numba-dpex)	1m 1s
Clean up anaconda packages (dppy/dpcpp-llvm-spirv)	59s
Clean up anaconda packages (dppy/dpnp)	1m 19s
Clean up anaconda packages (dppy/dpctl)	1m 26s
Clean up anaconda packages (dppy/dpbench)	1m 8s
	7m 29s

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