Raspberry-Pi-APRS.pdf document should remove the recommendation to remove PulseAudio

[dranch]

The Raspberry-Pi-APRS.pdf file recommends to remove PulseAudio which is an obsolete recommendation when PulseAudio was generally not stable on Raspbian. On modern Raspberry Pi OSes (Buster+), PulseAudio seems to work ok though it might still be worth recommending that users still use the dedicated ALSA "plughw" approach than using the "pulse" + configuring PulseAudio via the pavucontrol approach.

[wb2osz]

All mention of pulse audio is now gone.
Not sure about the rest.