Fix account header image missing in low-res (#24433)

app/javascript/styles/mastodon/accounts.scss

@@ -36,10 +36,6 @@
     @media screen and (max-width: 600px) {
       height: 200px;
     }
-
-    @media screen and (max-width: $no-gap-breakpoint) {
-      display: none;
-    }
   }
 
   &__bar {