Use ast_audiohook_write_list_empty to determine if our lists are empty instead

of duplicating that logic.
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Merged revisions 349289 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 349290 from http://svn.asterisk.org/svn/asterisk/branches/10


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@349291 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/audiohook.c

@@ -784,9 +784,7 @@ static struct ast_frame *audio_audiohook_write_list(struct ast_channel *chan, st
 	int removed = 0;
 
 	/* Don't translate our frame if we aren't going to bother to use it */
-	if (AST_LIST_EMPTY(&audiohook_list->spy_list)
-		&& AST_LIST_EMPTY(&audiohook_list->whisper_list)
-		&& AST_LIST_EMPTY(&audiohook_list->manipulate_list))
+	if (ast_audiohook_write_list_empty(audiohook_list))
 		return end_frame;
 
 	/* ---Part_1. translate start_frame to SLINEAR if necessary. */