librespot: remove conflicting command override (Dockerfile CMD is enough)

compose.yaml command: > syntax was being parsed as '--name' being the
executable, not an arg to librespot. Use Dockerfile CMD instead which
already includes the right args.

infra/compose.yaml

@@ -101,7 +101,7 @@ services:
       - NET_ADMIN
 
   # Spotify Connect: phone's Spotify app shows "Klubhaus" as a Connect target.
-  # Outputs audio to audio-bridge via PulseAudio (localhost:4713).
+  # Outputs audio to audio-bridge via PulseAudio (TCP localhost:4713).
   # Built locally on RPi (cross-compile is too slow under qemu).
   librespot:
     build: ./librespot
@@ -111,13 +111,7 @@ services:
     depends_on:
       - audio-bridge
     network_mode: host
-    command: >
+    # CMD is set in Dockerfile; do not override here.
-      --name "Klubhaus"
-      --backend pulseaudio
-      --bitrate 320
-      --initial-volume 100
-      --enable-audio-cache
-      --cache /var/cache/librespot
     volumes:
       - librespot_cache:/var/cache/librespot