CLN: Remove pd.util._depr_module?

[jbrockmendel]

AFAICT it isn't used anywhere

[gfyoung]

Hold onto this for now. We used it for deprecating entire modules. I doubt that such a use case will not come along in the future.

[jreback]

i think we used this to deprecate datetools

+.25 with removing its potentially useful

[gfyoung]

i think we used this to deprecate datetools

@jreback : Yes, that's right. This was a pretty nifty way of doing so, so I'm not really inclined to remove it any time soon given its usefulness.

[jbrockmendel]

Could we move it somewhere outside of the pandas/ directory? It adds noise to coverage stats #26877.

[gfyoung]

Is it possible to ignore coverage for those lines? I would prefer that. The reason is that this is a really useful utility that we may want to reuse in the future.