output: removed duplicate debug messages from plugins

The MPD core logs the audio format of all audio outputs.  Remove the
duplicate message from the plugins.

src/output/alsa_plugin.c

@@ -408,10 +408,6 @@ alsa_open(void *data, struct audio_format *audio_format, GError **error)
 
 	ad->frame_size = audio_format_frame_size(audio_format);
 
-	g_debug("ALSA device \"%s\" will be playing %i bit, %u channel audio at %u Hz\n",
-		alsa_device(ad), audio_format->bits, audio_format->channels,
-		audio_format->sample_rate);
-
 	return true;
 }
 

src/output/jack_plugin.c

@@ -144,7 +144,6 @@ static void
 set_audioformat(struct jack_data *jd, struct audio_format *audio_format)
 {
 	audio_format->sample_rate = jack_get_sample_rate(jd->client);
-	g_debug("samplerate = %u", audio_format->sample_rate);
 	audio_format->channels = 2;
 
 	if (audio_format->bits != 16 && audio_format->bits != 24)

src/output/oss_plugin.c

@@ -563,11 +563,6 @@ oss_output_open(void *data, struct audio_format *audio_format, GError **error)
 
 	*audio_format = od->audio_format;
 
-	g_debug("device \"%s\" will be playing %u bit %u channel audio at "
-		"%u Hz\n", od->device,
-		od->audio_format.bits, od->audio_format.channels,
-		od->audio_format.sample_rate);
-
 	mixer_open(od->mixer);
 
 	return ret;

src/output/pulse_plugin.c

@@ -132,12 +132,6 @@ pulse_open(void *data, struct audio_format *audio_format, GError **error_r)
 		return false;
 	}
 
-	g_debug("PulseAudio output \"%s\" connected and playing %i bit, %i "
-		"channel audio at %i Hz\n",
-		pd->name,
-		audio_format->bits,
-		audio_format->channels, audio_format->sample_rate);
-
 	return true;
 }