HW Relnotes: Remove traces of sio(4)

[ziaee]

Summary

sio was disconnected from the build in 2008, and removed completely in

2019. These lines have actually been in the hardware release notes since

the first hardware release notes in 4.4R. Remove them from the hardware
release notes template only, we can regenerate the hardware release
notes for the upcoming release.

Ref: 71f0077631fa (Remove sio(4).)

[ziaee]

While here, might as well do the last two major releases.

[ziaee]

This actually has a parent revision of D50527, but I messed up the git-arc.

[emaste]

You can use "Edit related revisions" to change the parent/child reviews

[ziaee]

Rebased

[ziaee]

Thanks @emaste!

[mhorne]

Please check the commit description before pushing.

[ziaee]

I have no idea what's up with Phab why the lines are formatting like that. Thank you for approving this stack.

[ziaee]

Thanks! Merged, idk why this didn't close automatically.