How to get rid of the welcome, dashboard profile at the bottom of my website

I don’t see “welcome” or “dashboard”, but I do see a spot to login. Is that what you mean?

Are you testing your site in a different browser than what you’re building in so that you don’t see the WP login stuff (or log out)

It looks like it’s part of your theme. There might be an easy way of turning it off in your theme settings. If not, create a child theme http://codex.wordpress.org/Child_Themes

And then put this in your child theme style sheet:

#supplementary {
display: none;
}

It the future you can use the “inspect element” feature (I like both Firefox’s and Chrome’s) to figure out what piece of code is doing what.