Snippet: Display Sidebar Mobile Megamenu as 1 list

.sidr-class-megamenu ul .sidr-class-dropdown-toggle {
    display: none !important;
}

.sidr-class-megamenu > ul > li > a {
	display: none !important;
	padding: 0 !important;
	height: 0;
}

.sidr-class-megamenu ul ul {
    display: block !important;
}