Summary

Inspired by #8181.

These methods give the impression of a relatively high-level interface to modify Ticks. However, in practice this is overwritten by the formatter at draw time. No normal user should have the need to work with them. And in the rare case that they have, they could go low-level and code that explicitly Tick.label1.set_text(); Tick.stale=True.

Proposed fix

Deprecate and make private.