Accessibility: Editor, Publish meta box: remove a stray label and redundant CSS.

Also, adds a `role="button"` attribute to the "Edit" links.

Props iseulde.
Fixes #28411.

Built from https://develop.svn.wordpress.org/trunk@38700


git-svn-id: http://core.svn.wordpress.org/trunk@38643 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/css/edit-rtl.css

@@ -451,7 +451,7 @@ form#tags-filter {
 	height: auto !important;
 }
 
-#misc-publishing-actions label[for="post_status"]:before,
+#post-body .misc-pub-post-status:before,
 #post-body #visibility:before,
 .curtime #timestamp:before,
 #post-body .misc-pub-revisions:before,
@@ -459,20 +459,22 @@ span.wp-media-buttons-icon:before {
 	color: #82878c;
 }
 
+#post-body .misc-pub-post-status:before,
 #post-body #visibility:before,
 .curtime #timestamp:before,
 #post-body .misc-pub-revisions:before {
 	font: normal 20px/1 dashicons;
 	speak: none;
 	display: inline-block;
-	padding: 0 0 0 2px;
-	top: 0;
-	right: -1px;
-	position: relative;
+	margin-right: -1px;
+	padding-left: 3px;
 	vertical-align: top;
 	-webkit-font-smoothing: antialiased;
 	-moz-osx-font-smoothing: grayscale;
-	text-decoration: none !important;
+}
+
+#post-body .misc-pub-post-status:before {
+	content: "\f173";
 }
 
 #post-body #visibility:before {
@@ -481,6 +483,7 @@ span.wp-media-buttons-icon:before {
 
 .curtime #timestamp:before {
 	content: "\f145";
+	position: relative;
 	top: -1px;
 }