For Newer version of Edwiser RemUI theme (It will work for version Edwiser RemUI 3.7.5 and above)

Add this CSS in Edwiser RemUI General setting > Custom CSS section

body.notloggedin {
margin-left: 0;
}
body.notloggedin #nav-drawer,
body.notloggedin nav.navbar div[data-region="drawer-toggle"] {
display:none !important;
}


______________________________________________________________________________________________________________

For Older version of Edwiser RemUI theme (It will work for versions till Edwiser RemUI 3.5.11, Edwiser RemUI 3.6.7 and Edwiser RemUI 3.7.4)

Add this CSS in Edwiser RemUI General setting > Custom CSS section

.notloggedin.site-menubar-fold .site-menubar, #toggleMenubar {
display: none;
}
.notloggedin.site-menubar-fold .page {
margin-left:0px !important;
}