Revert changes to dmenurecord (#774)

Seems that @drakenewell will need to provide more details about his issue.

Someone commented that it broke for them which somewhat makes sense because alsa is lower level and might as well use it.

.local/bin/dmenurecord

@@ -33,7 +33,7 @@ screencast() { \
 	-framerate 60 \
 	-s "$(xdpyinfo | grep dimensions | awk '{print $2;}')" \
 	-i "$DISPLAY" \
-	-f pulseaudio -i default \
+	-f alsa -i default \
 	-r 30 \
  	-c:v h264 -crf 0 -preset ultrafast -c:a aac \
 	"$HOME/screencast-$(date '+%y%m%d-%H%M-%S').mp4" &
@@ -72,7 +72,7 @@ webcam() { ffmpeg \
 
 audio() { \
 	ffmpeg \
-	-f pulseaudio -i default \
+	-f alsa -i default \
 	-c:a flac \
 	"$HOME/audio-$(date '+%y%m%d-%H%M-%S').flac" &
 	echo $! > /tmp/recordingpid