Limit Profile Tab By Role.

yzc_limit_profile_tab_by_role.php

<?php

/**
 * Limit Profile Tab By Role.
 */
function yzc_limit_profile_tab_by_role() {

    // Get Current User Data.
    $user = get_userdata( bp_displayed_user_id() );

    // Get Roles.
    $roles = (array) $user->roles;

    if ( in_array( 'instructor', $roles ) ) {
        return false;
    }

    // Put Here The Tab Slug.
    $tab_slug = 'instructor';
    bp_core_remove_nav_item( $tab_slug );

}

add_action( 'bp_actions', 'yzc_limit_profile_tab_by_role' );