Closes #846 - Removes unused classes from stylesheet.

independent-publisher-2/css/blocks.css

@@ -457,14 +457,6 @@ body:not(.has-sidebar) .wp-block-table.alignfull {
 8.0 Blocks - Posts List Block
 --------------------------------------------------------------*/
 
-div.a8c-posts-list {
-
-}
-
-ul.a8c-posts-list__listing {
-
-}
-
 li.a8c-posts-list__item {
 	margin-top: 0;
 }
@@ -508,10 +500,6 @@ div.a8c-posts-list-item__meta {
     font-style: normal;
 }
 
-span.a8c-posts-list-item__datetime {
-	
-}
-
 span.a8c-posts-list-item__datetime:before {
 	content: "\f303";
 	position: relative;