HW Relnotes: Remove the Camera section
Remove the Camera section from the Hardware Release Notes template as
well as the last five years of Hardware notes where it contained only
ficticious entries.
+ The bktr driver was removed in src:daba5ace03e83a930 for FreeBSD 13.0.
+ The connectix quickcam was left over from the original hardware notes.
Hopefully we may be able to re-add the Cameras section in the future.