Problem: I would like to hide the Toolset toolbar buttons above WYSIWYG editor panels in wp-admin for certain User roles.

Solution: You can use the following code snippet to manage the visibility of these buttons in wp-admin:

function tssupp_remove_admin_toolset_buttons(){
  $user = wp_get_current_user();
  if ( is_admin() && !in_array( 'administrator', (array) $user->roles ) ) {
    add_filter( 'toolset_editor_add_form_buttons', '__return_false' );
  }
}
add_action( 'admin_init','tssupp_remove_admin_toolset_buttons', 9 );

Only administrators will see these buttons, but you can adjust the code to support other roles as well.