Problem with site identity on WP 4.5

When i install wordpress 4.5 on my blog a big site identity appear on my blog. So, how can i remove it? i find no option on my actual catchbox 4.6. And if i delete the text from customizer "identity"..can this affect search engine? Please take a look at screenshot: https://dl.dropboxusercontent.com/u/7588358/catchbox%20pro/Screenshot%202016-04-13%2000.06.08.png Any suggestions?