Update grunt-cssjanus to 0.2.4, we no longer need the fork.

Upstream changes:
* https://github.com/cssjanus/cssjanus/compare/v1.0.2...v1.1.2
* https://github.com/cssjanus/grunt-cssjanus/compare/v0.2.2...v0.2.4

fixes #30997.
Built from https://develop.svn.wordpress.org/trunk@31425


git-svn-id: http://core.svn.wordpress.org/trunk@31406 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/css/common-rtl.css

@@ -2224,7 +2224,7 @@ div.action-links {
 	margin: 174px 10px 0 0;
 	color: #fff;
 	background: rgba( 30, 30, 30, 0.9 );
-	text-shadow: 0 1px 3px rgba( 0, 0, 0, 0.4 );
+	text-shadow: 0 -1px 3px rgba( 0, 0, 0, 0.4 );
 	-webkit-box-shadow: 0 0 30px rgba( 255, 255, 255, 0.1 );
 	box-shadow: 0 0 30px rgba( 255, 255, 255, 0.1 );
 	-webkit-border-radius: 8px;

wp-admin/css/customize-controls-rtl.css

@@ -729,7 +729,7 @@ p.customize-section-description {
 .customize-control-header .uploaded .header-view .close:hover {
  color: black;
  text-shadow:
-    -1px -1px 0 #fff,
+    1px 1px 0 #fff,
     1px -1px 0 #fff,
     -1px 1px 0 #fff,
     1px 1px 0 #fff;

wp-admin/css/customize-widgets-rtl.css

@@ -254,7 +254,7 @@
 
 #customize-theme-controls .widget-area-select .selected {
 	color: #fff;
-	text-shadow: 0 -1px 0 rgba(0,0,0,.4);
+	text-shadow: 0 1px 0 rgba(0,0,0,.4);
 	background: #2ea2cc;
 }
 

wp-admin/css/list-tables-rtl.css

@@ -781,7 +781,7 @@ tr.inline-edit-row td,
 
 #wpbody-content .quick-edit-row-page fieldset.inline-edit-col-right .inline-edit-col {
 	border-width: 0 1px 0 0;
-	border-style: none none none solid;
+	border-style: none solid none none;
 }
 
 #wpbody-content .quick-edit-row-post .inline-edit-col-left {

wp-admin/css/media-rtl.css

@@ -191,7 +191,7 @@
 	text-align: center;
 	line-height: 22px;
 	font-weight: 400;
-	text-shadow: 0 1px 2px rgba(0,0,0,0.2);
+	text-shadow: 0 -1px 2px rgba(0,0,0,0.2);
 }
 
 .upload-php .fixed .column-parent {

wp-admin/css/themes-rtl.css

@@ -178,7 +178,7 @@
 	background: rgba(0,0,0,0.7);
 	color: #fff;
 	font-size: 15px;
-	text-shadow: 0 1px 0 rgba(0,0,0,0.6);
+	text-shadow: 0 -1px 0 rgba(0,0,0,0.6);
 	-webkit-font-smoothing: antialiased;
 	font-weight: 600;
 	padding: 15px 12px;