Remove some variables that were set but unused.

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@320947 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_alsa.c

@@ -384,7 +384,6 @@ static int alsa_write(struct ast_channel *chan, struct ast_frame *f)
 	static char sizbuf[8000];
 	static int sizpos = 0;
 	int len = sizpos;
-	int pos;
 	int res = 0;
 	/* size_t frames = 0; */
 	snd_pcm_state_t state;
@@ -398,7 +397,6 @@ static int alsa_write(struct ast_channel *chan, struct ast_frame *f)
 	} else {
 		memcpy(sizbuf + sizpos, f->data.ptr, f->datalen);
 		len += f->datalen;
-		pos = 0;
 		state = snd_pcm_state(alsa.ocard);
 		if (state == SND_PCM_STATE_XRUN)
 			snd_pcm_prepare(alsa.ocard);

channels/chan_mgcp.c

@@ -3900,13 +3900,11 @@ static int restart_monitor(void)
 
 static struct ast_channel *mgcp_request(const char *type, format_t format, const struct ast_channel *requestor, void *data, int *cause)
 {
-	format_t oldformat;
 	struct mgcp_subchannel *sub;
 	struct ast_channel *tmpc = NULL;
 	char tmp[256];
 	char *dest = data;
 
-	oldformat = format;
 	format &= capability;
 	if (!format) {
 		ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%s'\n", ast_getformatname_multiple(tmp, sizeof(tmp), format));