redactor: Drop extra css added for redactor 9.2.1

scp/css/scp.css

@@ -1308,7 +1308,7 @@ time {
     background:#f8f8f8;
     border:2px solid #2a67ac;
     display:none;
-    z-index:110;
+    z-index:10;
     box-shadow: 0 5px 60px #001;
     border-radius: 5px;
     max-height: 72%;
@@ -1540,7 +1540,7 @@ ul.progress li.no small {color:red;}
     width: 100%;
     height: 100%;
     background: #000;
-    z-index: 103;
+    z-index: 9;
     -webkit-transform: translate3d(0,0,0);
     opacity: 0.5;
 }