Here is the code snippet to unregister default layouts except sidebar-content and full-width in Genesis.
// Unregister default layouts genesis_unregister_layout( 'content-sidebar' ); genesis_unregister_layout( 'content-sidebar-sidebar' ); genesis_unregister_layout( 'sidebar-sidebar-content' ); genesis_unregister_layout( 'sidebar-content-sidebar' );
Add the code snippet in your theme’s functions.php
