Cleanup sxmo_youtube.sh, shellcheck, indent properly, and remove unused cndtn

scripts/appscripts/sxmo_youtube.sh

@@ -83,12 +83,6 @@ resultsmenu() {
 			return
 		elif [ "Close Menu" = "$PICKED" ]; then
 			exit 0
-		elif echo $PICKED | grep "Audio & Video or"; then
-			if [ "$AUDIOONLY" = 0 ]; then
-				AUDIOONLY=1
-			else
-				AUDIOONLY=0
-			fi
 		elif [ "$AUDIOONLY" = 1 ]; then
 			URL="$(echo "$PICKED" | awk -F " " '{print $NF}')"
 			st -e mpv -ao=alsa -v --no-video "$URL" &