fix: dot wrong event of pointer ant-design/ant-design#40288 (#858)

* fix: pointer-event can user in stop dot

* fix: delete useless code

Author: LongHaoo

assets/index.less

@@ -117,15 +117,13 @@
     width: 100%;
     height: 4px;
     background: transparent;
-    pointer-events: none;
   }
 
   &-dot {
     position: absolute;
     bottom: -2px;
     width: 8px;
     height: 8px;
-    // margin-left: -4px;
     vertical-align: middle;
     background-color: #fff;
     border: 2px solid #e9e9e9;
@@ -197,13 +195,6 @@
 
     &-dot {
       margin-left: -2px;
-      // margin-bottom: -4px;
-      // &:first-child {
-      //   margin-bottom: -4px;
-      // }
-      // &:last-child {
-      //   margin-bottom: -4px;
-      // }
     }
   }
 }