Remove .nocomments fix (#4913)

blockbase/assets/ponyfill.css

@@ -668,10 +668,6 @@ p.has-drop-cap:not(:focus):first-letter {
 	margin-bottom: var(--wp--custom--gap--baseline);
 }
 
-.wp-block-post-comments .nocomments {
-	display: none;
-}
-
 .wp-block-post-template {
 	margin-top: 0;
 	margin-bottom: 0;

blockbase/sass/blocks/_post-comments.scss

@@ -156,9 +156,4 @@
 		font-size: var(--wp--preset--font-size--small);
 		margin-bottom: var(--wp--custom--gap--baseline);
 	}
-
-	// Needed until we have the option to hide this message via the block.
-	.nocomments {
-		display: none;
-	}
 }