Hi Marta,
To hide the social profiles from the header Go to Appearance -> Theme Options -> Design Options Tab -> Custom CSS paste the following CSS code and Click on save all changes button:
.hgroup-right .social-profiles {
display: none;
}
Thank you for using our theme.
Could you also please help us rating this theme in WordPress Repository.
https://wordpress.org/support/view/theme-reviews/attitude#postform
We really appreciate your rating.
.
.