remove unused style code

Author: LooseLi

packages/react-notion-x/src/styles.css

@@ -852,18 +852,6 @@ svg.notion-page-icon {
   margin-bottom: 0;
 }
 
-.notion-list-numbered ol {
-  list-style-type: lower-alpha;
-}
-
-.notion-list-numbered ol ol {
-  list-style-type: lower-roman;
-}
-
-.notion-list-numbered ol ol ol {
-  list-style-type: decimal;
-}
-
 .notion-list-disc li {
   padding-left: 0.1em;
 }