Revert "PLT-2027- Improvements to about dialog"

webapp/sass/responsive/_mobile.scss

@@ -786,26 +786,6 @@
 }
 
 @media screen and (max-width: 640px) {
-    .modal {
-        .about-modal {
-            .about-modal__logo {
-                float: none;
-                padding: 0;
-                text-align: center;
-                width: 100%;
-
-                svg {
-                    height: 100px;
-                    width: 100px;
-                }
-            }
-
-            .about-modal__logo + div {
-                padding: 2em 0 0;
-            }
-        }
-    }
-
     .access-history__table {
         > div {
             display: block;