Deleted some old & unused files

data/stream.sdp

@@ -1,9 +0,0 @@
-v=0
-o=- 0 0 IN IP4 141.168.225.91
-s=No Name
-c=IN IP4 141.168.225.91
-t=0 0
-a=tool:libavformat 58.29.100
-m=audio 5002 RTP/AVP 97
-b=AS:800
-a=rtpmap:97 PCMU/32000/2

utilities/play.sh

@@ -1,4 +0,0 @@
-#! /bin/bash
-
-O="${1:=-}"
-sox -t raw -r 32000 -b 16 -c 2 -L -e signed-integer $O -d

utilities/record.sh

@@ -1,3 +0,0 @@
-#! /bin/bash
-
-sox -t raw -r 50000 -b 16 -c 2 -L -e signed-integer - out.wav

utilities/stream.sh

@@ -1,4 +0,0 @@
-#! /bin/bash
-
-#rtl_sdr -f 105.5M -s 1M - | ./fm1s.py | ffmpeg -f s16le -ar 50k -ac 2 -i - -f rtp rtp://localhost:1234
-./demo.py | ./fm1s_int16.py | ffmpeg -f s16le -ar 50k -ac 2 -i - -f rtp rtp://localhost:1234