Removed ImageTk._show

[radarhere]

Pillow/src/PIL/ImageTk.py

Lines 268 to 269 in d7d48df

	def _show(image: Image.Image, title: str | None) -> None:
	"""Helper for the Image.show method."""

This helper is actually unused, so I suggest deprecating it.

[hugovk]

It's underscore-prefixed, so shall we just remove it?

[radarhere]

Ok, I've updated the commit.