remove unused styles

src/Umbraco.Web.UI.Client/src/less/properties.less

@@ -7,33 +7,6 @@
     border-bottom: 1px solid @gray-10;
 }
 
-.date-wrapper__date {
-    padding: 10px;
-}
-
-.date-container {
-    text-align: center;
-}
-
-.date-wrapper__number {
-    font-size: 40px;
-    line-height: 50px;
-    color: @gray-2;
-    font-weight: 900;
-}
-
-.date-container__title {
-    font-size: 16px;
-    font-weight: bold;
-    color: @gray-3;
-    margin-bottom: 5px;
-}
-
-.date-container__date:hover {
-    background-color: @gray-10;
-    cursor: pointer;
-}
-
 .date-wrapper__date {
     padding: 10px;
     flex: 1 1 50%;
@@ -43,14 +16,6 @@
     border-left: 1px solid @gray-10;
 }
 
-.data-wrapper__add { 
-    font-size: 18px;
-    line-height: 10px;
-    color: @gray-8;
-    font-weight: 900;
-    margin: 0;
-}
-
 //------------------- HISTORY ------------------
 
 .history {