deprecate the libpulse replacement

Don't build by default, update the README
With pulse-server we are more flexible and compatible and we don't
have to (badly) reimplement libpulse anymore.

meson_options.txt

@@ -52,7 +52,7 @@ option('libjack-path',
 option('pipewire-pulseaudio',
        description: 'Enable pipewire-pulseaudio integration',
        type: 'boolean',
-       value: true)
+       value: false)
 option('libpulse-path',
        description: 'Where to install the libpulse.so library',
        type: 'string')

pipewire-pulseaudio/README.md

@@ -3,3 +3,7 @@ PulseAudio client library for PipeWire
 
 This is a replacement libpulse.so library. Clients using this library will
 transparently connect to PipeWire.
+
+This is now deprecated in favour of the protocol-pulse module that
+implements the pulseaudio protocol directly. This makes it possible to
+use the standard pulseaudio client library.