Revert "audio: fix wavcapture segfault"

This reverts commit cbaf25d1f59ee13fc7542a06ea70784f2e000c04.

Since previous commit every audio backend has a pcm_ops function
table. It's no longer necessary to test if the table is available.

Signed-off-by: Volker RĂ¼melin <vr_qemu@t-online.de>
Message-Id: <20220301191311.26695-9-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
diff --git a/audio/audio.c b/audio/audio.c
index 55f885f..c420a8b 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -612,7 +612,7 @@
         total += isamp;
     }
 
-    if (hw->pcm_ops && !hw->pcm_ops->volume_in) {
+    if (!hw->pcm_ops->volume_in) {
         mixeng_volume (sw->buf, ret, &sw->vol);
     }
 
@@ -718,7 +718,7 @@
     if (swlim) {
         sw->conv (sw->buf, buf, swlim);
 
-        if (sw->hw->pcm_ops && !sw->hw->pcm_ops->volume_out) {
+        if (!sw->hw->pcm_ops->volume_out) {
             mixeng_volume (sw->buf, swlim, &sw->vol);
         }
     }