reduce the amount of compiler warnings for variable shadowing

code/client/cl_parse.c

@@ -789,7 +789,6 @@ void CL_ParseVoip ( msg_t *msg ) {
 	}
 
 	for (i = 0; i < frames; i++) {
-		char encoded[256];
 		const int len = MSG_ReadByte(msg);
 		if (len < 0) {
 			Com_DPrintf("VoIP: Short packet!\n");

code/client/snd_mix.c

@@ -164,7 +164,6 @@ void S_TransferPaintBuffer(int endtime)
 
 	if ( s_testsound->integer ) {
 		int		i;
-		int		count;
 
 		// write a fixed sine wave
 		count = (endtime - s_paintedtime);