[custom.css] Remove duplicate entries

Possible introduced during an previous merge.

public/css/custom.css

@@ -200,39 +200,6 @@ footer {
   font-size: 0.8em;
   text-align: left;
 }
-.leftspace {
-  padding-left: 20px;
-}
-figure {
-  float: right;
-  max-width: 600px;
-}
-figure img {
-  display: block;
-  margin-left: auto;
-  margin-right: auto;
-}
-figure figcaption {
-  display: block;
-  margin-left: auto;
-  margin-right: auto;
-  font-style: italic;
-  text-align: justify;
-}
-#cloudberry-view {
-  margin-top: 14px;
-}
-.ui.codetab {
-  padding: 0;
-}
-#file-buttons {
-  padding-right: 5px;
-}
-.supersmall {
-  padding-left: 10px;
-  font-size: 0.8em;
-  text-align: left;
-}
 .leftspace {
   padding-left: 40px;
 }