Remove default settings for config.send_to in application test utils (default settings for send_to are no longer required).
Remove default settings for config.send_to in application test utils (default settings for send_to are no longer required).

vishwaprakashmishra/xmatrix,vishwaprakashmishra/xmatrix,TouK/vumi,TouK/vumi,vishwaprakashmishra/xmatrix,harrissoerja/vumi,harrissoerja/vumi,TouK/vumi,harrissoerja/vumi