Following 7b1d1a1658, the structure
for the reldoc target has significantly changed as result of the
ASCIIDoctor/Hugo migration. As the release notes related files
on the installation medium are inherently out of date, purge them
entirely.
Discussed within: re, doceng
No objection: re (silence), doceng (silence)
Timeout: 2 weeks
MFC after: 1 week
MFC to: stable/13, stable/12, and stable/11 only
Sponsored by: Rubicon Communications, LLC ("Netgate")
We now have a u-boot port and config.txt for booting on all 64bits
variant of the RPI boards (RPI2v1.1, RPI3* and RPI4*) so use
the new u-boot-rpi-arm64 and the config_arm64.txt files.
Discussed with: karels, kevans
