Unused parameters in dask_ml.cluster.KMeans

The `precompute_distances`, `copy_x`, and `n_jobs` parameters for the `KMeans` class do not seem to be used beyond initialization.

Are there plans for use of these parameters?

Start by reading the dask_ml.cluster.KMeans class and tracing the initialization of precompute_distances, copy_x, and n_jobs. Determine whether the issue calls for removing these parameters or implementing their intended use; done when their status is explicit and the class no longer retains unexplained unused parameters.

Written by the indexing model from the issue text.