BuddyPress.org

We had a similar issue and chose a soft solution with CSS so we do not have to worry when upgrading.

We placed this in the site-wide.css:

#wp-admin-bar #bp-admin-blogs, #bp-adminbar-blogs-menu {

display:none !important;

}

#my-blogs {

display:none !important;

}

So the functions technically remain but are just not displayed. Works for us.