You can edit /usr/local/cwpsrv/htdocs/admin/design/img/login.css
find this code:
.about {
margin: 70px auto 40px;
padding: 8px;
width: 260px;
font: 10px/18px 'Lucida Grande', Arial, sans-serif;
color: #666;
text-align: center;
text-shadow: 0 1px rgba(255, 255, 255, 0.25);
background: #eee;
background: rgba(250, 250, 250, 0.8);
border-radius: 4px;
background-image: -webkit-linear-gradient(top, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.1));
background-image: -moz-linear-gradient(top, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.1));
background-image: -o-linear-gradient(top, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.1));
background-image: linear-gradient(to bottom, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.1));
-webkit-box-shadow: inset 0 1px rgba(255, 255, 255, 0.3), inset 0 0 0 1px rgba(255, 255, 255, 0.1), 0 0 6px rgba(0, 0, 0, 0.2);
box-shadow: inset 0 1px rgba(255, 255, 255, 0.3), inset 0 0 0 1px rgba(255, 255, 255, 0.1), 0 0 6px rgba(0, 0, 0, 0.2);
}
add in the first line command display: none;
so it's to be like this:
.about {
display: none;
margin: 70px auto 40px;
padding: 8px;
width: 260px;
font: 10px/18px 'Lucida Grande', Arial, sans-serif;
color: #666;
text-align: center;
text-shadow: 0 1px rgba(255, 255, 255, 0.25);
background: #eee;
background: rgba(250, 250, 250, 0.8);
border-radius: 4px;
background-image: -webkit-linear-gradient(top, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.1));
background-image: -moz-linear-gradient(top, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.1));
background-image: -o-linear-gradient(top, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.1));
background-image: linear-gradient(to bottom, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.1));
-webkit-box-shadow: inset 0 1px rgba(255, 255, 255, 0.3), inset 0 0 0 1px rgba(255, 255, 255, 0.1), 0 0 6px rgba(0, 0, 0, 0.2);
box-shadow: inset 0 1px rgba(255, 255, 255, 0.3), inset 0 0 0 1px rgba(255, 255, 255, 0.1), 0 0 6px rgba(0, 0, 0, 0.2);
}
to make /usr/local/cwpsrv/htdocs/admin/design/img/login.css writable, you can use this ssh command:
chattr -i /usr/local/cwpsrv/htdocs/admin/design/img/login.css