Merged revisions 243258 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r243258 | jpeeler | 2010-01-26 12:19:10 -0600 (Tue, 26 Jan 2010) | 2 lines
  
  Remove unnecessary code in ast_read as issue 16058 has been fully solved now.
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@243266 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/channel.c

@@ -3534,17 +3534,6 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 		ast_frame_dump(chan->name, f, "<<");
 	chan->fin = FRAMECOUNT_INC(chan->fin);
 
-	if (f && f->frametype == AST_FRAME_CONTROL && f->subclass.integer == AST_CONTROL_HOLD && f->datalen == 0 && f->data.ptr) {
-		/* fix invalid pointer */
-		f->data.ptr = NULL;
-#ifdef AST_DEVMODE
-		ast_log(LOG_ERROR, "Found HOLD frame with src '%s' on channel '%s' with datalen zero, but non-null data pointer!\n", f->src, chan->name);
-		ast_frame_dump(chan->name, f, "<<");
-#else
-		ast_debug(3, "Found HOLD frame with src '%s' on channel '%s' with datalen zero, but non-null data pointer!\n", f->src, chan->name);
-#endif
-	}
-
 done:
 	if (chan->music_state && chan->generator && chan->generator->digit && f && f->frametype == AST_FRAME_DTMF_END)
 		chan->generator->digit(chan, f->subclass.integer);