[wfdmanager/wfdtsdemux] 1. Fix the pad probe function

[wfdmanager/wfdtsdemux] 1. Fix the pad probe function
2. Fix to handle message confige error.
3. Fix prevent defects.
4. Remove unnecessary files and code.
5. Change CMD_SET_PARAM with CMD_SEND_REQUEST
6. Fix RTSP Message for Wi-Fi display.

Change-Id: Iffeb2a173f37d7830392bdce055923960e64bfdb
Signed-off-by: Sangkyu Park <sk1122.park@samsung.com>