removing log

[luc-github]

fix #2139

[bertmelis]

My opinion about this PR:

I did some digging after receiving numerous messages during an OTA (using the repo example).
After some digging I think I found a possible cause: OTA calls WiFiClient::connected() repeatedly. The implementation uses recv() from sockets.h and in the docs I read this:

Upon successful completion, recv() returns the length of the message in bytes. If no messages are available to be received and the peer has performed an orderly shutdown, recv() returns 0. Otherwise, -1 is returned and errno is set to indicate the error.

So it returns -1 because no data is available but the socket is still connected. So it signals an error which isn't a real error. Hence, reporting res < 0 as an error doesn't make sense and should be deleted as in this PR. Furthermore, should there be an error, it is reported in the lines below.

(no opinion about BSSID change)