DEP: integrate: remove simps,trapz,cumtrapz

[j-bowhay]

Reference issue

follow up to #18699

What does this implement/fix?

Deprecated for two releases so ready for the chopping block.

Additional information

[mdhaber]

LGTM if tests pass - unless we decided that these need to wait for 1.15 since 1.13 was not in the normal cadence? I looks like these weren't deprecated until 1.12, so this would only give 6 months. Some other features deprecated in 1.12 said they would be removed in 1.15 (Release Notes).

I am not finding any other appearances of these terms except for trapz, which is still allowed as an alias for the trapezoidal distribution and as a method option of quad_vec. (Those uses don't appear to have been deprecated.)

Aside - looks like we can now remove all those attributes from private namespaces that weren't marked with an underscore!

[j-bowhay]

LGTM if tests pass - unless we decided that these need to wait for 1.15 since 1.13 was not in the normal cadence? I looks like these weren't deprecated until 1.12, so this would only give 6 months. Some other features deprecated in 1.12 said they would be removed in 1.15 (Release Notes).

Yes good spot it appear to have slipped off that list, I'll update this pr just to bump the message

[h-vetinari]

When 1.13 was announced to be out-of-band, I did an analysis of the deprecations in 1.11/1.12 and whether to postpone them. In this case I don't think it's necessary to wait any longer, 1.14 should be fine IMO. The non-slur aliases have also existed for a long time already.

[h-vetinari]

I am not finding any other appearances of these terms except for trapz, which is still allowed as an alias for the trapezoidal distribution and as a method option of quad_vec. (Those uses don't appear to have been deprecated.)

Hm yeah, we should deprecate those and remove them as well.

[mdhaber]

Thanks @h-vetinari.
@j-bowhay, with that in mind, shall I merge this?

[j-bowhay]

Thanks for confirming @h-vetinari , happy to merge

[mdhaber]

Thanks @j-bowhay @h-vetinari!