Fix end of hxx files remove unneeded blank lines

[jbampton]

No description provided.

[jbampton]

This was an auto fix using pre-commit but I just submitted the line ending changes previously.

From the official pre-commit hooks there is the end-of-file-fixer which was used:

https://github.com/pre-commit/pre-commit-hooks?tab=readme-ov-file#end-of-file-fixer

I can see the diff is too large / too many files etc for proper review.

We could start with a subset of files ?

[Pilot-Pirx]

It was the massive amount of files why I didn't merge it.
But in the end, we can always revert the commit...