Remove specific columns layout in row layout in Beaver Builder

style.css

/**
 * Remove specific columns layout in row layout in Beaver Builder
 *
 * @author Davinder Singh Kainth
 * @link http://probeaver.com/?p=1012
 *
 */

.fl-builder-edit [data-cols="3-cols"],
.fl-builder-edit [data-cols="4-cols"],
.fl-builder-edit [data-cols="5-cols"],
.fl-builder-edit [data-cols="6-cols"] {
    display: none !important;
}